Hi, an update. I scanned DRO and FindMyPast for all W* (variations of William) and variations of Wind. I narrowed the timespan from 1650 to 1750 with an aim to identify any "williams" and try to identify births, deaths and marriages. It was a long process of elimination and a messy Excel sheet. The data was useful for other Winn/Wind families tho so not wasted. I have narrowed it down to two Williams. This would make them candidates to be the father of "William" born 1735 that appears to be the father of the five Cow Close kids.
Baptisms Washington Holy Trinity, 1708, Gulielmus [William] Winn (Washington), father Thomas Wind
Baptisms Chester-le-Street St. Mary and St. Cuthbert, 1709, William Wind (woodstone house), father Martin Wind
I believe that Woodstone House is near Lumley Thicks, just north of Chester Le Street. Washington is much close to Lamesley, but neither were far from Cow Close Lamesley.
I know its a huge leap to make, but these are the possibilities to be the William father of William Wind 1735. So its either someone not on any register we currently know (or I missed it), or one of the Williams 1708 or 1709.
Given that there is a gap in the records and the Lamesley registers are somewhat iffy, I wonder if there is any other way to exclude these two or begin to make a "semi guess". Not ideal genealogy I know, but thats where I am at. A LOT of "ifs" but would welcome any thoughts.