I have a Daniel Sullivan in my extended family. He is the son of William (1777 Virigina - 1821 St. Louis, buried Old Cathedral) and Sarah McElhaney/McIlhaney. Daniel was born in St. Louis 3 Feb 1807, baptized there 30 May 1807, married Mary Bone 18 Nov 1835 at St. Joachim. The witnesses at his wedding were brother-in-law John Kincaid, George Stewart, Charles Bone, sister Louisa Sullivan, and Francois Coleman.
Daniel's and Mary's children were Therese Domitille (b.1837), Isabelle Elizabeth (b 1839), William (b. 1842), and Charles Daniel (b. 1845)
Daniel died between 1845-1850.