| Marriage* | 16 March 1809 | Lydia Wallingford married Absolom Clark, son of John Clark(e) and Mary "Polly" L'Oreal, on 16 March 1809 at Champaign Co., Ohio, Marr record bk A entry 2019-91 (Evd 314), married by Zaid Pinkard. |
| Census1830* | 1830 | Lydia Wallingford was the head of the household in the 1830 census, Greene Co., Illinois, with (Evd 316) 1m0-5 1m5-10 3m15-20 1m40-50 2f0-5 2f5-10 2f10-15 1f30-40. |
| Census1850 | 1850 | She appeared on the 1850 census as the head of household, btwn Macoupin & Apple Springs, Greene Co., Illinois, (Evd 328) age 57. |