A John Sanders of Gloucester, MA married Mary Dolliver daughter of Samuel Dolliver of Gloucester. He died young at sea leaving a single son John. They had no other Sanders children. What happened to Mary (Dolliver) Sanders isn't known according to Putnam's Magazine but Torrey and Essex Ant. states she married second to Richard Babson:

Mary Babson

From Torrey's New England marriages:

SANDERS, John & Mary [DOLLIVER] (1662-); ca 1682? {Putnam's Mag. 4:160}

Putnam's Magazine Vol 4 p 160

https://babel.hathitrust.org/cgi/pt?id=hvd.32044098875891&view=1up&...

"Mary Dolliver, d/o Samuel and Mary (Elwell), b. 26 March 1662; "married John Sanders, who is supposed to be the son of the widow Mary, and was supposed to have been lost at sea, leaving one son, John: of her I know no more.""

According to Babson's Gloucester (below) Mary (____) married to Richard Babson

Richard Babson

Babson: Chamberlain, George Walter, The Babson Genealogy (Wellesley Hills, Mass.: Babson Institute, 1934)

https://babel.hathitrust.org/cgi/pt?id=wu.89062943154;view=2up;seq=18

On GENI we show the same Mary Dolliver who married Richard Babson. Torrey's New England marriages appears to agree that Mary (Dolliver) m/1 John Sanders of Glocester and m/2 Richard Babson:

BABSON, Richard (1663-) & 1/wf Mary [DOLLIVER] (-1718); by 1687; Gloucester {Essex Ant. 5:1, 11:92; Babson 12}

Richard Babson married 1st Mary _____ about 1686. She died 14 Feb 1717/18 in Gloucester. Had children (list)[6]

Essex Ant. 5:1 Same info as in Babson Genealogy

> ***Essex Ant. 11:92 "Richard Babson ... married Mary Dolliver before 1696

She died:

Gloucester, Essex, Massachusetts, United States. Vital Records of Gloucester, Massachusetts, to the End of the Year 1849. (Salem, Massachusetts.: Essex Institute, 1917) 64.

BABSON, Mary, w. Richard, Feb. 14, 1717-18, a. abt. 54 y.