Pierre Guerette b. IL 1780 and wife Marie Palmer had six kids that I know of. Some info was found online and is not my research so take it with a grain of salt.
Pierre b. 1808 male Pelagie Rosalie b. 1819 female Marie Emilie b. 1821 female Pelagie b. 1823 male Eliza Pelagie b. 1825 female married Jos. M. Labarge Jr. Louis b. 1827 male married Mary Louise Labarge
Missouri Heritage Digital database online has the estate records of LOUIS GUERETTE from 1852 til 1857 when it was final. I don't have the exact marriage date for Louis and Miss Labarge as I don't have access to ancestry.com. (which is where it can be found). Marie Louise "Labarge" Guerette married Robert H. DURPHY in St. Louis in 1858. They had eight kids, all of whom lived and died in St. Louis and many of whom are buried at Calvary Catholic Cemetery in St. Louis. Only 5 DURPHY sons lived to adulthood. The 3 DURPHY daughters died young. Two of the five sons never married and one son married but died soon after. Joseph S.W. DURPHY (a son) and his wife Annie C. Nevill was mentioned in this forum earlier. They had 7 children.
The surviving children married into the following surnames: GENTRY, NEVILL AND DOCKERY.
Would always love to learn more about the DURPHY lines of Virginia.