I am an American living in the State of Delaware. I have long been interested in the Lo-La-Low-throp-roppe-ropp-orp-orpe family. I have been reading the posts from you. I believe that we all evolved from Walter de Lowthorp (Lothroppe, etc) who appears to me to have been an undertenant of the Meynil and Gant families who were landed by William I (Conqueor) in 1066. Through the Gant fee of Filey (not far from you)lands were parcelled out to Lowthorpes, Heslertons, St. Quintons, etc. Gilbert de Gant came with the Conqueor and was rewarded with this land in fee (feudal grant for Knight services).
Could Hessle be a place named for the Heslertons? I think this all fits together even if I'm not exactly correct about the time and order of happenings.
When I was there in 1988, I spent tree weeks at the Viking Inn in Driffield and adventured all around these towns and hamlets: Lowthorpe, Kelk, Little Kelk, Cattleholmes, Beverly, Foston, Hull, Hessle, Forton (where a sheep and I surprised each other in a tiny chapel, Bridlington, Burton, etc.
I loved the countryside and would still be there if I didn't have a job and family to get back to. So, I think we're cousins!