Submitter for this info in Family Search:
Harlan E. Boone
721 Benning Rd
Jackson MS 39206
Is listed in a couple of documents as an heir to John. May have been the eldest son of a presently undocumented first marriage.
1910 - Neshoba County, MS, census, p. 51, #113/116, John H. Clark, 24, Ina, wife, 19.
1920 - Neshoba Co., MS census, ED80, sheet 5b, HH88/92:
John Clark, head, owns home, no mortgage, MW, 34, married, literate, b. MS, both parents b. MS, farmer; Ina, wife, FW, 29, literate, b. MS, both parents b. MS, Clide, son, MW, 7, b. MS; Marzine, son, MW,5, b. MS; Woodroe, son, MW, 3, b. MS; Hicksie, daughter, FW, 6/12, b. MS.
1930 - Neshoba Co., MS, census, ED 50-6, sheet 17b:
343/347
Clark, John H., head, owns home, mw, 44, married at 23, MS/MS/MS, farmer, general farming
Ina, wife, fw, 39, married at 18, MS/MS/MS
Clyde, son, mw, 18, s
Marzine, son, mw 15, s
Woodrow, son, mw, 13,s
Hixie, daughter, fw, 10, s
Stanley, son, mw, 6, s
Johnnie R., daughter, fw, 3 6/12, s
Thomas, son, mw, 4/12?, s
Nicholson, Murrel, boarder, mw, 19, s, MS/MS/MS, general farm laborer