In the will of Augustine Walker, dated April 1613, he mentions "my daughter Elizabeth Warren wife of Richard Warren", and "her three children Mary, Ann and Sarah." We know that the Mayflower passenger's first three children were named Mary, Ann, and Sarah (in that birth order).[[1]]
MARRIAGE: By 7 March 1636/7 [PCR 1:54; TAG 60:129-30] (and probably by 14 March 1635/6 [PCR 1:41, 56, 152]) Elizabeth Warren, daughter of RICHARD WARREN; she died Hingham 9 March 1669/70 [NEHGR 121:124].