Harold, I believe this is Nathaniel G. Ainsworth, b. Nov 1847 in Butler Co, AL, son of William P. and Mary Victor Ainsworth. Nathaniel's wife, Elsie (Alsie)Blackwell, b. June 1848, d. 1909. The Fairmont Cem list I have shows an "M.G.Ainsworth" buried there in 1917,I think this is an error in the transcribing of N.G. N.G.& Elsie parents of; Mary E., William O., Hezakiah K., Harvey Orange, Albany, James Miln., Nat, and Della.
There are four other Ainsworth's burials there but I only have information on two,Julius Levi Ainsworth,b. 1894, Smith Co,a grandson of N.G. & Elsie, a son of Harvey Orange. The other, Marshall C. Ainsworth, b. 21 Aug , 1893, Smith Co, d. 1962. This is a son of Haston Patrick, b. 1853 & Lucy Ann Smith Ainsworth, with the given name of Marshall James Ainsworth but went by Marshall Cook Ainsworth.