Milligan was born December 10, 1795 in Bohemia Manor, Cecil County, Maryland, son of Robert Milligan and Sarah Jones. He grew up in Wilmington, Delaware and attended Wilmington Academy and St. Mary?s College in Baltimore. He attended Princeton College in 1814, but was expelled for "refusing to obey the lawful command of the presiding officer in the dining room." [1] He studied law with his brother-in-law Louis McLane and was admitted to the bar in 1818, and began practice in New Castle County, Delaware.
Milligan is described in the Diaries of Edmund Canby as follows: "...(he)...is a beautiful speaker, his manner is fine, gestures good, matter well arranged, distinct and clear- certainly one of the most delightful speakers I have ever heard...Milligan would be a splendid speaker with practice...he has many happy hits and some beautiful classical illusions...He is, I am told, a fine classical scholar." [2]
Public offices
At this time Delaware elections were held the first Tuesday of November. Members of the U.S House took office March 4 and served for a term of two years.