Clifford

[klif-erd] /ˈklɪf ərd/
noun
1.
Clark McAdams [muh k-ad-uh mz] /məkˈæd əmz/ (Show IPA), 1906–98, U.S. lawyer and government official.
2.
William Kingdon
[king-duh n] /ˈkɪŋ dən/ (Show IPA),
1845–79, English mathematician and philosopher.
3.
a male given name.