It would be interesting to find how these two returned home. Unfortunately, service records for Michigan soldiers are not available on line. I tried Ancestry.com with no results.

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WILLIAM R. MONTGOMERY

Petosky, April 16 - William R. Montgomery, prominent member of the G.A.R., and for many years justice of the peace in Petoskey, died unexpectedly at his home here Friday. He was 78 years old and had been a resident of Petoskey since 1901.
Mr. Montgomery was a life member of Newaygo Lodge No. 131, F.&A.M., at Newaygo, where he grew to manhood.
He was born at Hamilton Ont., and came to Michigan at the age of 12. He left school to enlist in Company A, 10th Michigan Cavalry in the Civil War. He was discharged at Knoxville, Tenn., June 2, 1865.

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SAMUEL McCUNE

Samuel McCune was born May 11, 1842, in Rutland, Vermont, the son of Samuel McCune and Sarah Rutledge McCune. The family moved to Newaygo village around 1851.
According to the record of the 10th Cav. of Mich. of the Civil War, Samuel McCune enlisted in Co. A 10th Cav., August 27, 1864 at Grand Rapids, Ml, for one year, at the age of 23. Mustered August 27, 1864. Joined the regiment at Strawberry Plains, Tenn., Sept.25, 1864. Discharged for disability at Knoxville, Tenn., June 14, 1865.