I have have the same issue, in Mildred (Mosher) Chamberlain, Laura (McGaffey) Clarenbach, Descendants of Hugh Mosher and Rebecca Maxson Through Seven Generations, (1980), pgs 11-12
list child # 42 xii ?LEWIS son of Nicholas Mosher & Rebecca Wilcox
Mildred (Mosher) Chamberlain, Laura (McGaffey) Clarenbach, Descendants of Hugh Mosher and Rebecca Maxson Through Seven Generations ISBN 0-9604142-1-5 Revised Edition 1990, Pg 10 lists Lewis also (i can verify this later)
In Ralph V. Wood Jr.,, Mayflower Families Through Five Generations - Francis Cooke,(Picton Press, Rockport , Maine 1999), 330. does not list Lewis..
42 LEWIS4 MOSHER (?Nicholas3, Nicholas2, Hugh1), b. ca.
1756; d. before 5 Feb. 1835 Wolfe Is., Frontenac Co. Ont.;
m. MARY FREEMAN, daughter of John of Stillwater, Saratoga
Co. NY, d. after 5 Feb. 1835, probably in Wolfe Is. Though
Lewis is not in the list of children of Nicholas3 in William
Mosher Chronological History of the Mosher Family, his major
Mosher connections are with that family, and there is also a
connection with the family of Nicholas' son Jabez. He was
in Saratoga NY in 1775, and in 1777 joined the British Army,
serving all through the war according to testimony of Capt.
John Simeon Covell, husband of Susannah4 Mosher, daughter of
Nicholas. When the war ended the corps he was in fled to
St. John PQ, about twenty miles north of the border where it
crosses Lake Champlain.
At first he and his family were sheltered in a camp at
Machice near Three Rivers. There were two daughters by
1781, when Governor Haldimand, fearing for their safety so
near the border, moved them and others to twp. 7 in New Os-
wegatchie, soon called Augusta, Grenville Co. Ont.
Nicholas4 Mosher was in the group also, and the two were
mustered into forces under Capt. Justus Sherwood 12 Oct.
1784. There were then three daughters in his family.
On 25 June 1785 he signed a petition that Hezekiah
Mosher of White Creek NY (son of Jabez4 (Nicholas3) be per¬
mitted to settle in the twp. Permission was given. In 1788
Lewis was back in Quebec at South (Richelieu) river, peti¬
tioning for compensation for property confiscated when he
joined the British Army. On 16 July 1797 he was granted E
1/2 of lot 5 that had been granted him 27 May. He soon
moved to Frontenac Co. and from there sold his land in
Grenville to Edward Jessup 25 Feb. 1799.
At some time he lived in Landsdowne, Leeds Co., for the
UEL lists name that as his residence. When his daughter
Elizabeth was married in 1801 he was in Yonge, Leeds Co.
When the widow Mary petitioned for land in 1835 she said
that she had lived in Wolfe Is. many years and that Lewis
had died there.The petitions by his sons Lewis and
Nicholas the same year identify their father as Lewis Sr.,
late of Augusta.The land sold in 1799 was in downtown
References: Ontario Bureau of Archives Second Report, 484, 485. Governor Haldimand Papers. Upper Canada Land Petitions: children of Lewis Mosher. Champine, La Rue Gen. Census 1850 Alexander,Jefferson Co., NY. Records of Susan E. MacDonald, Polly Craig, Alan Lindsey;.Johnstown Dist. Marriages 1801-50.
Mildred (Mosher) Chamberlain, Laura (McGaffey) Clarenbach, Descendants of Hugh Mosher and Rebecca Maxson Through Seven Generations:Revised Edition, (5009 Risser Rd Madison, Wisconsin 53705-1366:Laura M. Clarenbach, 1990), 34-36
So what do you have for sources to suspect son of Jabez?