I agree with Mr. Pitts. Looks more like a Masonic tombstone to me [could be Odd Fellows though].

James Hefley
Born: 1821 Henderson, Tennessee
Died:
Burried Greenwood-Sebastian, Arkansas
Spouse:Susanna Parker
Born: 7 Feb 1828 in North Carolina
Died: 2 Feb 1906 in Quinton, Pittsburg, Oklahoma
Marriage: 1850 in Texas
Children Sex Birth
Martha E Hefley F 1850 in Texas
Missouri C Hefley F 1851 in Texas
Virginia A Hefley F 1854 in Texas
Albert Perry Hefley M 30 May 1860 in Hunt, Texas
Columbus L Hefley M 30 Dec 1861 in Texas
Elizabeth J Hefley F 1865 in Texas
Mary Allison Hefley F 1866 in Texas
Allison Nelson Hefley M 1868 in Texas

I don't see military service records for him.

JR