George Harrison | Benjamin Harrison | Harrison Ford | William Henry Harrison | Lou Harrison | Harrison | Harrison Birtwistle | John Harrison | Rex Harrison | Harrison Gray Otis | William Harrison Rice | William Harrison Binnie | Michael Harrison | Harrison, New Jersey | Harrison Gray Otis (lawyer) | Francis Burton Harrison | Dhani Harrison | Thomas Harrison | Oscar Harrison | Jim Harrison | Harrison County | Gavin Harrison | William Harrison | Rich Harrison | Richard Harrison | M. John Harrison | Michael Harrison (musician) | Harrison Marks | Fort Benjamin Harrison | Carter Harrison, Jr. |
In his early adult life he moved to Toledo, Ohio, where he unsuccessfully ran for mayor under the Know-Nothing Party banner in 1855.
Specifically, Milligan, William A. Bowles, Harrison H. Dodd, Stephen Horsey and Andrew Humphreys were accused of planning to steal weapons and invade Union prisoner-of-war camps to release Confederate prisoners.
The party was led by Harrison H. Riddleberger of Woodstock, an attorney, and William Mahone, a former Confederate general who was president of several railroads.