Blue Patrol Jacket

[jumper]

That style jacket is very similar to a 1859-1865 New York State Militia Jacket, worn by many of the State Militia's during the American Civil War.

You must be referring to the 79th New York Volunteer Infantry they were the only recorded unit in US military to be kilted.
They wore the Cameron tartan and the majority of the unit was Scottish immigrants or 1st gen US Scots.

79thnyuniform 002.jpg