Is this Henry Smith the son of Joel R. Smith and Elizabeth Miller? If so, I believe he was the last person to be interred at the Smith Miller Cemetery. Henry F. Smith has the last grave stone placed there.
I believe we have the same Henry Smith, he is the son of Joel Smith and Elizabeth Miller. Here he is in the 1850 and 1860 US Census:
1850 Census Joel Smith Jackson Township, Washington County, IN page 595
381/382 Joel Smith 47 M Farmer NC
Elizabeth Smith 53 F NC
William Smith 18 M Ind
Henry Smith 16 M Ind
Susan Smith 15 F Ind
James Smith 13 M Ind
Adam Miller 86 M NC
1860 Census Howard Township, Washington County, Indiana
House # 511
Smith, Joel R. 58 NC farmer
Elizabeth 66 NC
Wm. 29 farmhand
Henry 27 farmhand
Susan 25
James 22