I did not notice before but Abraham Redman is listed as a bachelor at the time of his marriage in 1630 to spinster Sara Balthrop--so Richard Redman who was kin to the Bentham family and who d. 1647 was very likely not the son of Abraham Redman, draper, who died in 1636. The son Richard of this Abraham Redman would be at most 6 years old at the death of his father in 1636. If this Richard were identical to the one that dies leaving a wife in 1647 he would have been, at most, age 17 at the time of his passing. Do you have any further insights? This is the transcription of the marriage record:
"Dec. 16
1630 Thomas Axtell of Christ Church, London, grocer, allegeth that Abraham Redman of the same parish, draper, bachelor, aged 44, intendeth to marry Sara Balthrop of the same parish, spinster, aged 26, at her own disposing, her father deceased; at St. Matthew Friday Street."