Once called Old Georgetown Cemetery, Haire Cemetery has few burials and many of those are lost to time and the elemtns. Fortunately Wilbur Bement (1834-1891) is not among the lost.
David Gitchel (1837-1861) was one of the very first casualties of the regiment.
He died at Camp Blair, near Chain Bridge, just a few weeks after the 3rd Michigan arrived outside of Washington, DC. The marker is most likely a cenotaph.
Dutch immigrants Hendrikus "Henry" Dykema (1836-1869) and Martin Deboe (1837-1908) are buried in the soldiers' section; German immigrant Henry Koenigsberg (1826-1911) is buried nearby.
Note that Martin was discharged from the 3rd Michigan during the war and subsequently reentered the service in the 23rd Michigan Infantry.
There is an interesting story here somewhere but sadly little information has so far come to light about the short life and violent death of Glen Austin.
With the exception of C. B. Salisbury, all the other men here were former members of the 3rd Michigan Infantry (1st organization). Note the two government stones for John Herriman, the original and it's replacement.