I do seem to have set the cat among the pigeons as our English saying goes!
While you are all sorting out the different versions of the Bray family you may like to consider (but not necessarily accept) the following possible sequence of Brays in Bedfordshire
Roger de Bray bc1170, at Silsoe 1199-1228, followed by
Robert de Bray bc1195, at Silsoe in early 13th Century, followed by
Thomas de Bray bc1220, at Silsoe 1253-1282, Sheriff in 1272, followed by
Sir Thomas de Bray bc1245, at Silsoe 1282-1297, MP for County in 1289
Nicholas de Bray bc1272, at Silsoe 1319-1346, followed by
John de Bray bc1297, at Chiswick Middlesex 1324-1349, followed by
John de Bray bc1325, inherits property of cousin Hugh, at Chiswick 1347-1371 and at Tempsford Bedfordshire 1374-1384, followed by
Thomas Bray, bc1350, at Chiswick 1380-1385 and MP for Middlesex 1391, at Luton Bedfordshire in 1410, followed by John Bray bc 1375 with property at Chiswick until 1446 and at Great Staughton Bedfordshire from1427, followed by
Richard Bray bc1405 at Chiswick, wed Margaret Sandys c1430 with son John Bray the Elder born c1432, moved to Bedfordshire c1431, Margaret died c1435, Richard wed Joan Troughton dau of John & Alice Troughton of Dunstable Bedfordshire c1436 had son Reginald bc1438, son John the younger bc1462 and daughters Alice & Joan.
John Bray the elder wed c1458 (wife's name unknown) and had dau Margery bc1460.
Richard employed in household of Margaret Beauchamp at Bletsoe Bedfordshire
Reginald grew up at Bletsoe and became employed by Margaret Beaufort dau of Margaret Beauchamp when she married Henry Stafford in 1457.
That should be enough to be going on with. The early part is based on property transactions recorded in the Bedford County Archive. These do not as a general rule show relationships just the date, the name and the place.