Samuel Richards, b. say 1634, d. bet. 20 Mar 1652/53 (letter from his mother) and 23 Jul 1679 (not mentioned in mother's will). Mentioned in father's will 17 Dec 1650.
The order of sons in the will is John, James, Samuel, Joseph and Benjamin. James is baptized in 1632, so this is probably how "say 1634" was arrived at for Samuel's birth. Joseph and Benjamin are explicitly mentioned as under age, but neither James or Samuel are, even though all four appear to be under 21. One could speculate that under age was used here for those children under 14 (the age where they can choose their own guardian, i.e., the father was making his son John the de facto guardian of his younger children). Since this arrangement did not include Samuel, it suggests Samuel was older than 14, hence was born before 1636.
Samuel (Richards), b. say 1634; named in father's will but not mother's; "consider the trouble that I have with Sammuell for he is such a trouble that none will share with me in, and if I put him out it will cost me so much that I cannot well bear" (Welthian Richards to her son John, 20 March 1652/3 [WP 6:268]).