The best source for information on Captain Bridges is the National Archives here in Washington DC. While an undergrad I prepared a study of Captain Bridges, and used all his combined service records for my sources. There is a great deal of material for general public viewing (and copying). My great-great Grandfather served in Bridges Battery, and I am currently working with Illinois & the VA on an almost certain goof regarding his (my GG-Grandfather's) official records. It was because of these snags that I chose (was forced) to write on Captain Bridges instead of my own ancestor. The Captain was a fine soldier and man, and I am priveleged to have done a study of him. Feel free to contact me if I can help.