Did Clarence Birdseye have any family?

yes he did. Father: Clarence Frank Birdseye (attorney, b. 1854, d. 1927)
Mother: Ada Underwood Birdseye (m. 1878)
Sister: Miriam Birdseye
Brother: Kellogg Birdseye
Brother: Henry Underwood Birdseye
Sister: Katherine Birdseye
Sister: Marjorie Birdseye
Brother: Roger Williams Birdseye
Sister: Elizabeth Birdseye
Sister: Margaret Birdseye
Wife: Eleanor Gannett Birdseye (b. 1888, m. 1915, d. 1977)
Son: Kellogg Birdseye (b. 1916, d. 2002)
Daughter: Ruth Birdseye (b. 1918, d. 2003)
Daughter: Eleanor Birdseye (b. 1923)
Son: Henry Birdseye (b. 1925, d. 1972)