The farthest I have back is William Norrish who married Joan Andrews in 1737/38. William was born in 1708. William and Joan's daughter Mary married Elias Easterbrook born apporx 1738. son of Nicholas Norrish of Holne.
On the Easterbrook side I have Elias born approx 1686 in Holne wife Elizabeth. Do you think perhaps that your Thomas and my Elias (1686)could be related. email me direct
Just a note I have been able to track at least 5 marriages between the Norrishs and the Easterbrooks.