Hi! Thanks for linking to the Find A Grave page. Unfortunately, while the site appears to give lots of info, it’s not sourced. The image doesn’t list any children, and the will transcript does not list a Robert. The only mention of a Robert is in the FindAGrave writer’s list of children, which doesn’t have any citations. This is not evidence of a familial link. Robert Tyler’s father is unknown, and he cannot be linked to Laurence. Sorry!