Thomas Edmund Burke (1875–1929) was an American sprinter. He was the first Olympic champion in the 100 and 400 meter dash races. He competed at the 1896 Summer Olympics.
William FitzAdelm de Burgo is in fact two different and unrelated people, William de Burgh and Wiliam FitzAdelm. J.H. Round in his book Feudal England (1909)proved the two were different, and there is further discussion of the confusion in Clarence Ellis's Hubert de Burgh (1952). The more recent Oxford Dictionary of National Biography entry for William de Burgh lists him simply as William de Burgh. William and his family were from Burgh-next-Aylsham in Norfolk hence the surname.
What I find funny is that I named two book characters that are sisters Tara and Ryleigh, with one of them having a daughter named Kacey whom she gives their last name to. Even better, those names and this surname are all of Irish origin, and I didn't even know that before choosing names for them all. What a coincidence, am I right?