William Walker Flute born 1801, married Caroline Timms, then married an Elizabeth Sanders (sometimes spelled Saunders) when she died so they had 7 children from that second marriage.) My lineage comes from William's only daughter with Caroline, Harriet. Her son is William Hart Flute which is where Oscar fits in. He's my grandmother's brother. Thomas Walker Flute married a Susannah Wright who was an Astwood neighbor which is probably where your sister's husband's connection springs from. Jonas married an Ann and had 10 children. Loads of Flutes and Wrights by 1901!
I got mesmerized going through all the census records for Astwood/ Stagsden because all these Flute families including the 2 Williams and brothers Thomas and Jonas + Harriet raised their families side by side either in Bury End or Bury Lane or on the High St. Then their children did the same (William Hart, Charles and James just to mention the men.) They all lived through several decades in close proximity with the same neighbor families.... sometimes they married them: Barcock, Huckle, Wright Litchfield, Hobbs, Fensom, Wilding.
I came across my grandmother's marriage certificate yesterday and a Sanders was a witness in Wellingborough in 1898 along with her father William Hart Flute so they came in from Astwood together. Stepbrothers? The more I dig I get a sense that these neighbor "families" were really close, liked each other's company and watched out for each other. Thanks again for your help.