There isn't enough context to determine who "Tremayne" refers to, as it is a common name. Additionally, one's sexual orientation is a personal matter and should be respected as such. If you have a specific individual in mind, it's best to refer to their own statements or public information regarding their sexuality.
Les Tremayne's birth name is Lester Tremayne.
Edward Tremayne died in 1582.
Arthur Tremayne was born in 1827.
Arthur Tremayne died in 1905.
Tremayne Norris is 6' 1".
Tremayne Woodard is 5' 4".
John Tremayne Rodd was born in 1769.
Henry Hawkins Tremayne was born in 1741.
Henry Hawkins Tremayne died in 1829.
Tremayne Kirkland was born on 1984-01-26.
Les Tremayne is 5' 10 1/2".
John Tremayne Rodd died on 1838-10-04.