Strontium
Oliver Wendell Holmes Sr.
Cuba Gooding Sr.
Edgar Bronfman Sr.
John S. McCain Sr.
Milton Bluehouse Sr.
Lee Fogolin Sr.
Efrem Zimbalist Sr.
Harry Connick Sr.
Benigno Aquino Sr.
Lockheed SR-71 Blackbird
Stephen N. Limbaugh Sr.
Hubert Blaine Wolfeschlegelsteinhausenbergerdorff Sr.
Albert A. Gore Sr.
Sr Pelo
Ramon Revilla Sr.
Joseph P. Kennedy Sr.
Levi Lincoln Sr.
Bill Gates Sr.
Robert Downey Sr.
William Clay Ford Sr.
Emilio Nicolas Sr.
Robert E. Cooper Sr.
Pat Harrington, Sr.
William Thaw Sr.
David Poe Sr.
Antonio Sabàto Sr.
Andrew Jackson Sr.
Hans Kraay Sr.
Martin Luther King, Sr.
Jiří Zídek Sr.
László Cseh Sr.
Joseph S. Pulver Sr.
Optare Solo
SR Colmar
John Kennedy Sr. (footballer)
Rubén Díaz Sr.
Steve Adubato Sr.
Balbir Singh Sr.
Charles Ronald Norgle Sr.
Carter Harrison, Sr.
Earl G. Graves Sr.
Chavo Guerrero Sr.
Arthur Imperatore Sr.
Barack Obama Sr.
Arthur Defensor Sr.
Jon Huntsman Sr.
SR Class 2SL
SR Class 4Lav
SR Class SL
SR Class CP
James B. Nutter Sr.
John Romita, Sr.
SR Class 2Wim
SR Class CW
Robert M. La Follette
SR Class 6Pul
Paul B. Johnson Sr.
James Madison Sr.
Vincent J. McMahon
Alfred Edwin Brain Sr.
John Farey, Sr.
Marvin Gay, Sr.
Thomas Remengesau Sr.
Joe Garagiola, Sr.
SR Class 2Nol
Aurora (aircraft)
Perry O. Hooper, Sr.
John Calvin Coolidge Sr.
Oliver Hill
Nick Begich Sr.
SR Class 4Sub
Bob Jones, Sr.
Alvin and the Chipmunks
Otakar Brousek, Sr.
Frank M. Warren Sr.
Bill France, Sr.
James Earl Carter Sr.
Harry F. Byrd
David Bennett Sr.
Dale Earnhardt
John Seigenthaler
Fred Hale
Hank Williams
Sellapan Ramanathan
Interstate 710 and State Route 710 (California)
SR multiple unit numbering and classification
Bill Dodgin, Sr.
SR Class 4DD
Vladimir Kara-Murza Sr.
Rayo de Jalisco Sr.
SR departmental locomotives
Ben Dunne Sr.
Lon Chaney
Robert Louis Freeman Sr.
Socialist Republic of Serbia
Socialist Republic of Montenegro
Desi Arnaz
Frank Bunker Gilbreth
Ronald Reagan
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