Fred and George do not both die only Fred dies.
Fred Kinghorn died in 1971.
Fred Nicholson died in 1972.
Fred Crisman died in 1975.
Fred Duncan died in 1986.
Fred Trowbridge's birth name is Frederick George Trowbridge.
Alexander Trowbridge died in 2006.
Elton Trowbridge died in 1974-04.
Charles Trowbridge died on 1967-04-30.
John Todd Trowbridge died in 1858.
Richard Trowbridge died on 2003-05-04.
Edmund Trowbridge Dana died in 1869.
Josiah Trowbridge died on 1862-09-13.
Harold Trowbridge Pulsifer died in 1948.
Rowland E. Trowbridge died in 1881.
F. Trowbridge vom Baur died in 2000.
William Trowbridge Merrifield Forbes died in 1968.