Namesakes
American First Ladies:
1 first lady
Mary Todd Lincoln 1861-1865 
Fictional Characters from Television:
1 character
Kate Todd 2003 NCIS
Nobel Prize Winners:
1 chemistry
(chemistry) Alexander R. Todd 1957
Notable Actors and Entertainers:
2 actors
Tony Todd 1954-
Sonia Todd 1959-
Olympic Medalists:
1 gold/bronze
(gold/bronze) Mark Todd 1984; 1988; 2000; 2012 equestrian