Yes Franklin had a son Laurent Samuel Lapan, born 13 Oct 1861 (I may have said 13 June 1861 before - that was incorrect) married to Josephine Delias Mongean/Mosher, born 03 Dec 1863. I think the Franklin born 1836 is the same as our Franklin. Just a case of not knowing when he was born. I based my dob on 1. death record indicate age as 58 which means born about 1826. 2. I also knew Laurent, Sr had a child born in 1828 who was named Jean Evangeliste so most likely this was Franklin Evangeliste.
Thomas had a son Lawrence Joseph Lapan born 08 Jun 1879.Who is your great grandmother?