1st Regiment, New York Mounted Rifles (Sometimes designated 7th New York Cavalry.)

United States  U.S. Military   New York    New York Military   New York in the Civil War    1st Regiment, New York Mounted Rifles (Sometimes designated 7th New York Cavalry.)

Brief History
The 1st Regiment, New York Mounted Rifles was sometimes designated as the 7th Calvary, they mustered in by companies and mustered out 6th, 7th and 8th companies July 10, 1865, 9th Company August 5, 1863.

The New York State Military Museum website has a unit history project page for the 1st Infantry Regiment.

The Civil War in the East website gives a timeline for the involvement of 1st New York Infantry Regiment in the war.

Companies in this Regiment with the Cities and Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.

Companies A and B were principally recruited at New York City;

Companies C and D; First and Second Cavalry Companies, Tenth Legion; were principally recruited at Monticello, Grahamville, Fallsburgh, Clayville, Middletown, Ellenville and Newburgh;

Companies C and E were principally recruited at Troy, Albany, Fort Edward, Salem, Schenectady and New York City.

Company F was principally recruited at Troy, Buffalo and New York City.

Company G was principally recruited at Troy, Chatham and New York city.

Company H was principally recruited at Troy, Buffalo, Mt. Pleasant, Syracuse, Tarry-town and New York City.

Company I was principally recruited at Canaan, Carmel, Chatham, North Castleton and New York City.

Company K was principally recruited at Buffalo, Charlton, Livonia, Richmond, Springwater, Victor and New York City.

Company L was principally recruited at Lenox, Oneida, Rome, Syracuse and Verona.

Company M was principally recruited at Chatham, North Castle and New York City.

Other Sources
Civil War Soldiers & Sailors System has the information listed above and may have additional historical information. Searches can be made by name of a soldier or sailor. Information about cemeteries battles, prisoners, medals of honor and national parks is also included.

New York in the War of the Rebellion, 1861 to 1865, by Frederick Phisterer (Albany : J.B. Lyon, 1912). Google Books, other libraries with this book, FHL Collection FHL book 974.7 M2p, FHL film 1486494-1486496

The Union Army : a History of Military Affairs in the Loyal States, 1861-65, Records of the Regiments in the Union Army, Cyclopedia of Battles, Memoirs of Commanders and Soldiers, Reprint of original published: Madison, Wis.: Federal Pub. Co., 1908. Other libraries with this book,FHL Collection FHL book 973 M2ua