Adapted from the biographical sketch for Lieutenant Commander Seeman Gaddis, Navy Biography, Navy Office of Information, Internal Relations Division, (OI-430), 5 September 1951; now part of the Modern Biography Files, Navy Department Library, Naval History & Heritage Command.

The Navy Department Library
- Modern Bios A
- Abbot, Edward W.
- Abbot, James Lloyd
- Abbott, Clark Tait
- Abbott, William George
- Abbott, Robert Lewis
- Abele, Mannert Lincoln
- Abercrombie, Laurence Allen
- Abercrombie, William Warner
- Abernethy, Elmer Paul
- Abhau, William Conrad
- Abplanalp, Kenneth Clair
- Abrahams, Noble Wayne
- Acker, Frank Clements
- Ackerman, Edward
- Ackiss, Ernest Lee
- Acuff, Jasper Terry
- Adair, Charles
- Adair, Crutchfield
- Adair, Jamie
- Adam, James D.
- Adams, Allen Bond Jr.
- Adams, Benjamin Harrison
- Adams, Carlton Rolla
- Adams, Charles Francis, III
- Adams, Dudley Hale
- Adams, Frank Eugene
- Adams, John Clausel
- Adams, Lenus Franklin
- Adams, Lynn W.
- Adams, Richard Donald
- Adams, Robert Lee
- Adams, Scarritt
- Adams, Spencer Moore
- Adams, Thomas McConnell
- Adams, Woodbury Sanderson
- Adamson, Frank Marshall
- Adamson,Robert Edward Jr
- Adee, Graham Montrose
- Adell, Bruce Byron
- Adell, Cecil Clinton
- Adkins, James Alvin
- Adkins, Joe Dean
- Adrian, Robert Nelson
- Ageton, Arthur Ainsley
- Agnew, Dwight Merle
- Agnew, Henry Follin
- Agnew, Jack
- Agnew, William John Clarke
- Ahern, James Richard
- Ahl, Benjamin Nathaniel
- Ahroon, Thomas Andrew
- Aiau, Harvey Chadwick Kamohoalii
- Ailes, John William, III
- Ainsworth, Herbert Sylvan
- Ainsworth, Walden Lee
- Akers, Frank
- Albers, John Juergen
- Albert, Francis Lee
- Albin, George Waugh
- Albright, Paul Morris
- Albrittain, John Warren
- Alderman, John Clement
- Alderton, Dickson Wellington
- Aldrich, Charles Warren
- Aldrich, Clarence Edward
- Aldrich, Clarence Edward, Jr.
- Aldridge, Eugene Talbert
- Alexander, Joe McKnitt
- Alexander, John Richmond
- Alexander, Marion Snow
- Alexander, Ralph Clonts
- Alexander, Raymond Wellington
- Alexander, Richard Griffiss
- Alexander, Stanley Morton
- Alexander, William Henry
- Alexis, Algert Daniel
- Alford, John Morris
- Alford, Leon Otto
- Alford, Lodwick Houston
- Alford, Zeb Dickey
- Allan, Halle Charles
- Allan, Theodore DeWitt
- Alldredge, Walter Whitmore
- Allegrone, Charles
- Allen, Archer Meredith Ruland
- Allen, Burrell Clinton Jr.
- Allen, Charles Vern
- Allen, Edward Henry
- Allen, Ezra Griffen
- Allen, James Ross
- Allen, Jerome Lee
- Allen, Max Harold
- Allen, Nelson John
- Allen, Robert Addison
- Allen, Roger Hurst
- Allen, Walter Hinds
- Allen, William Young, Jr
- Allendorfer, Harry Carl, Jr.
- Allis, Frederick Ashton
- Allison, Samuel Francis
- Allshouse, Thomas James
- Almgren, Neal
- Alston, Augustus Howard, Jr.
- Altmann, Richard Gustaf
- Alvarez, Everrett, Jr.
- Alvis, Harry James
- Alvis, John Hubbard
- Amberson, Julius Martin
- Ambruster, Stephen Henry
- Amen, William Thomas
- Amme, Carl Henry Jr.
- Ames, Lionel Eugene Jr.
- Ammon, William Bronley
- Amsden, William Faulkner
- Ancrum, William
- Anderson, Anton Bennett
- Anderson, Bern
- Anderson, Carl Eric
- Anderson, Charles Carter
- Anderson, Clyde Bertram
- Anderson, Edward Abel
- Anderson, Edward Lee
- Anderson, Fernald Philip
- Anderson, Franklin Warren
- Anderson, George W.
- Anderson, Herbert Augustus
- Anderson, Herbert Henry
- Anderson, Jay Stephens
- Anderson, Joseph Bruce
- Anderson, Kenneth Leroy
- Anderson, Norman Oliver
- Anderson, Paul Ramseur
- Anderson, Richard Beatty
- Anderson, Richard Ernest
- Anderson, Robert Harold
- Anderson, Roy Gene
- Anderson, Samuel Clay
- Anderson, Thomas Carlyle
- Anderson, Vernon Leroy
- Anderson, Walter Stratton
- Anderson, William Donald
- Anderson, William Lovett
- Anderson, William Robert
- Anderton, Henry Lafayette Jr.
- Andrews, Adolphus
- Andrews, Burton Howell
- Andrews, Cecil L.
- Andrews, Charles Herbert
- Andrews, Charles Lee Jr.
- Andrews, Clyde Cecil
- Andrews, Edgar Clessie Jr
- Andrews, Frank Arland
- Andrews, John Jr.
- Arnold, Murr E.
- Austin, Bernard Lige
- Modern Bios B
- Bagley, David Worth
- Bahm, George Henry
- Bailey, Carlos Augustus
- Bailey, Charles Streater
- Bailey, John
- Bailey, Leonard William
- Bailey, Watson Osgood
- Bailey, William Byron
- Bains, George Washington
- Baird, Abraham Lincoln
- Baird, Charles Fitz
- Baird, Leonard James
- Bakenhus, Reuben Edwin
- Baker, Charles Adams
- Baker, Douglas
- Baker, Duncan Scott
- Baker, Felix Locke
- Baker, Harold Davies
- Baker, Robert Leon
- Baker, William Bostock
- Banister, Alan B.
- Bastedo, Paul Henry
- Beardall, John Reginald
- Beauregard, Augustin T.
- Bellinger, Patrick Nieson Lynch
- Berns, Max Arnold Jr.
- Bernstein, Henry Emil
- Berree, Norman Rahn
- Berrey, Julius M.
- Berrien, Frank Dunn
- Blakely, Edward Noe
- Bulkeley, John Duncan
- Burke, Arleigh A.
- Beard, Jefferson Davis
- Beardslee, Lester Anthony
- Beard, Donald Charles
- Bean, Alan Lavern
- Beam, Carl Eugene
- Modern Bios C
- Cabanillas, Jose M.
- Cabaniss, Robert Wright
- Cabot, Hugh
- Cadwalader, John
- Cady, John Parmelee
- Cafferata, William Francis
- Cagle, Malcolm Winfield
- Cain, James Bernice
- Cain, Mat Murry Jr.
- Caine, Lawrence Ballif Jr.
- Calder, William Edward, III
- Caldwell, Clarence Mills
- Caldwell, Henry Howard
- Calhoun, William Lowndes
- Callaghan, Daniel Judson
- Carney, Robert Bostwick
- Chafee, John Hubbard
- Chandler, Theodore Edson
- Clark, Joseph James
- Claytor, William Graham, Jr.
- Coe, James Wiggins
- Connally, John Bowden, Jr.
- Caldwell, Turner Foster Jr.
- Caldwell, Robert Hugh Jr
- Callahan-Edward Cooper
- Caldwell, Rex Smith
- Calhoun, Walter Carson
- Callahan, Cornelius Patrick Jr.
- Callahan, Fort Hammond
- Callaghan, William McCombe
- Callahan, Joseph William
- Calkins, Willard Charles
- Callaghan, Robert William
- Calvert, Allen Phillip
- Calvert, James Francis
- Calver, George Wehnes
- Calvy, George Lloyd
- Camera, John Alden
- Camera, Robert Snowden
- Cameron, Alan Russel
- Campbell, Herbert John
- Campbell, Gordon
- Campbell, George William
- Campbell-James-Harry
- Campbell, Norwood Axtell
- Campbell, Robert Lord
- Canada, Robert Owen Jr
- Canaga, Bruce Livingston
- Canaga, Bruce Livingston Jr
- Cantrell, Roy Foster
- Caney, Lawrence Davidson
- Canty, Joseph Patrick
- Modern Bios D
- Modern Bios E
- Modern Bios F
- Modern Bios G
- Gabbert, John S. C.
- Gaddis, Seeman
- Gaffney, John Jerome
- Gaillard, William Edward
- Gainard, Joseph A.
- Gaines, Oliver Wallace
- Gaines, Richard Kenna
- Galantin, Ignatius Joseph
- Garcia, Edmund E.
- Garrett, III H. Lawrence
- Gates, Jr. Thomas Sovereign
- Gay, George Henry
- Geiselman, Ellis Hugh
- Ghormley, Robert Lee
- Giffen, Robert Carlisle
- Gingrich, John E.
- Modern Bios H
- Modern Bios I
- Modern Bios J
- Modern Bios K
- Modern Bios L
- Modern Bios M
- Mabus, Raymond Edwin, Jr.
- Martin, Charles Franklin
- McCann, Allan R.
- McClusky, Clarence Wade
- McGonagle, William Loren
- McMorris, Charles H.
- Michaelis, Frederick
- Miles, Milton E.
- Mitscher, Marc Andrew
- Moffett, Willam Adger, Sr.
- Moffett, William Adger, Jr.
- Momsen, Charles B.
- Montgomery, Alfred Eugene
- Moorer, Thomas Hinman
- Morison, Samuel Eliot
- Mullinnix, Henry Maston
- Murray, Albert Ketcham
- Mustin, Lloyd M.
- Modern Bios N
- Modern Bios O
- Modern Bios P
- Modern Bios Q
- Modern Bios R
- Modern Bios S
- Modern Bios T
- Modern Bios U
- Uehlinger, Archibald Emil
- Uhrenholdt, Andrew Curtis
- Ulen, Francis Graeme
- Underhill, Edward Griffin
- Underhill, James L.
- Underwood, Herbert Whitwell
- Ungar, J. Stephen
- Unmacht, George Paul
- Upham, Frank Brooks
- Urban, Kenneth Lee
- Urbanczyk, Louis Thaddeus, Jr.
- Urquhart, James Burwell, Jr.
- Ustick, Theodore Montanye
- Utter, Harmon Tischer
- Modern Bios V
- Valencia, Eugene Anthony
- Van Landingham, J. Philip
- Van Mater, Blinn
- Van Meter, Karl Schlegel
- Van Metre, Merle
- Van Metre, Thaddeus Johnson
- Van Ness, Harper Elliott
- Van Orden, Merton, Dick
- Van Swearingen, Earl Kendall
- Van Valkenburgh, Franklin
- Van Zandt, James Edward
- Vannoy, Frank Wilson
- VanPeenen, Hubert John
- Vardaman, James Kimble, Jr.
- Varian, Donald Cord
- Vasey, Lloyd Roland
- Vaughan, James John
- Vaughan, Paul
- Vaughn, Robert James
- Veasey, Alexander Craig
- Veazey, David Julian
- Vecchione, Felix Salvatore
- Veeder, William Schuetze
- Vejtasa, Stanley Winfield
- Veline, Carl Ashton
- Vellis, Demetrius John
- Venlet, David J.
- Verhoye, Harry James
- Vernou, Walter Newhall
- Vesole, Kay Kopl
- Vest, John Pinckney Wheeler
- Veth, Kenneth LeRoy
- Vickrey, William Clyde, Jr.
- Vieweg, Walter Victor Rudolph
- Villines, William McKinley, Jr.
- Vincent, Walter Michael
- Vincent, Warren Crist
- Vinock, Eli
- Violett, Quentell
- Virden, Frank
- Virtue, Clark Wakeman
- Visser, Richard Gerben
- Vita, Harold Emanuel
- Vitale, Michael C.
- Vittek, Albert William
- Vitucci, Vito Louis
- Voegeli, Clarence Earl
- Voelker, George E.
- Voetsch, Stephen S.
- Vogan, Guy Sedgwick
- Voge, Richard George
- Vogel, Joseph
- Vogeley, Theodore Robert
- Vogelgesang, Carl Theodore
- Vogt, Larry Gene
- Voils, Roy Cramer
- Von Dreele, William Henry
- Von Heimburg, Ernest Herman
- Von Kleeck, Ernest Saint Clair, Jr.
- Von Weller, George Schoen
- Voorhies , James Franklin
- Voris, Frank Burkhart
- Vorse, Albert Ogden, Jr.
- Vose, James Everett, Jr.
- Vose, William Cecil
- Vosseller, Aurelius Bartlett
- Vossler, Francis Alfred L.
- Vraciu, Alexander
- Modern Bios W
- Modern Bios X
- Modern Bios Y
- Yancey, Evan White
- Yankey, William Rose
- Yarbrough, Oscar D.
- Yarnell, Harry Ervin
- Yates, Charles Moulding
- Yates, Earl Preston
- Yates, Marion Twitty
- Yavorsky, Joseph Thomas
- Yeager, Howard A.
- Yeomans, Elmer E.
- Yesensky, Albert Samuel
- Yon, Joseph Langham
- Yoran, George Francis
- Young, Andrew Lee, Jr.
- Young, Cassin
- Young, Charles B.
- Young, David Bryan
- Young, David Bryan, Jr.
- Young, Howard Leyland
- Young, Leo C.
- Young, Lloyd Verne
- Young, Mark A.
- Young, Rufus Calhoun
- Young, Robert Todd
- Young, William Brent
- Youngblood, Curtis Tillman
- Youngkin, Carl Kenneth
- Youtz, Ellis Gardiner
- Modern Bios Z
- Zabilsky, John
- Zabriskie, Jr. David
- Zacharias, Ellis Mark
- Zahm, John Crawford
- Zech, Jr. Lando William
- Zehner, John Adolphus
- Zeigler, Samuel Jacob
- Zelibor, Thomas E.
- Zellars, Thomas Edward
- Zemmer, Harold Maurice
- Zern, Richard Dewey
- Ziegemeier, Henry, Joseph
- Zilmer, Richard C.
- Zimble, James Allen
- Zimermann, Richard Galt
- Zimet, Stanford Frederick
- Zimmerli, Rupert Meyrick
- Zimmerman, Max Edward
- Zimmerman, Milton Abraham
- Zimmerman, Nelson Daniel
- Zimmerman, Walter Earnest
- Zimmermann, Edwin Julius Jr.
- Ziroli, Humbert William
- Zitzewitz, Herbert Carl
- Zobel, William Alexander
- Zola, Stanley Peter
- Zondorak, Charles Joseph
- Zornow, Gerard, Philip
- Zurmuehlen, Gerald Dale
- Zumwalt, Elmo Russell
- Zundell, Joseph L.
- Biography
Seeman Gaddis
26 January 1899 - 2 July 1979
Seeman Gaddis was born on 26 January 1899, in Jersey City, New Jersey, son of Mrs. Anna (Hellam) Gaddis (now Mrs. Gorham), and the late James Gaddis. Appointed as a Boatswain in the US Naval Reserve on 12 February 1941, he was commissioned a Lieutenant in the Naval Reserve on 16 April 1942. He was promoted to the rank of Lieutenant Commander on 3 October 1945, and then Commander 1 July 1951.
Upon receiving his appointment in 1941, he was assigned to the District Intelligence Office, Twelfth Naval District, San Francisco, California, where he was serving when the Japanese attacked Pearl Harbor, Territory of Hawaii, 7 December 1941. He remained there throughout the most part of World War II, and until January 1945 when he transferred to the District Intelligence Officer, Seventeenth Naval District, Dutch Harbor, Alaska.
Returning to the United States in November 1949, he reported for duty in the District Intelligence Office, Ninth Naval District, Chicago, Illinois. Commander Gaddis retired in March 1961. He died in Santa Clara, California, on 2 July 1979.
Commander Gaddis had the American Defense Service Medal; the American Campaign Medal; the Asiatic-Pacific Campaign Medal; and the World War II Victory Medal.
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