There is a Ralph Mosher b. abt 1907 son of Freeman Mosher and Ethel Adams. Their parents names are on the marriage record below. Are you sure Ralphs wife was Dorothy? There is a Ralph Mosher who's wife is Doris - unk last name.
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to see if you can find more details by plugging in the various names and dates of parents and siblings.
US Census, 1920 , Franklin, ME
Citing this record see https://familysearch.org/pal:/MM9.1.1/MFZJ-P74
self Freeman W Mosher M 49y ME
wife Ethel E Mosher F 33y ME
dau Carrie E Mosher F 14y ME
son Ralph A Mosher M 13y ME
son Arthur P Mosher M 9y ME
son Delmont H Mosher M 1y1m ME
Edd H Farmer M 58y ME
US Census, 1910 Farmington, Franklin, ME
https://familysearch.org/pal:/MM9.1.1/MR33-7QR
self Freeman W Mosher M 39y ME
wife Ethel E Mosher F 29y ME
dau Carrie E Mosher F 5y ME
son Ralph A Mosher M 3y ME
Percy H Taylor M 40y ME
Maine, Vital Records, 1670-1907
https://familysearch.org/pal:/MM9.3.1/TH-1-17876-40910-23?cc=1803978&wc=MMBF-72H:n1153052795
(front side of marriage record)
F W Mosher
Age 30 Birth Wilton ME
Male White 1st Marriage
Residence Weld, ME
Marriage 18 Jun 1904 Weld, Maine
Official A C Brown, Minister, Weld, ME
spouse: Ethel Adams
Age 18 Birth Weld, MA
Female White 1st Marriage
https://familysearch.org/pal:/MM9.3.1/TH-1-17876-42008-32?cc=1803978&wc=MMBF-72H:n1153052795
(Back side of their marriage record)
Grooms father William Mosher, White, Farmer, deceased, birth Wilton, ME
Grooms mother Evelyn Flood, White Residence Chesterville ME, birth Wilton, ME
Brides father Elroy Adams, White, Laborer, birthplace ME
Brides mother Carrie Howard, Residence Bigelow, MA birth ME
U S Census, 1940 Sumner Town, Oxford, ME
https://familysearch.org/pal:/MM9.1.1/KMM2-HSM
head Ralph Mosher M 33 ME
wife Doris V Mosher F 25 VT
son Ralph A Mosher M 1 ME
dau Mary E Mosher F 0 ME
United States Census, 1920 Orleans, VT No way to tell if this is the woman above?
self William B Hinton M 24y VT
wife Mildred E Hinton F 24y VT
dau Dorris B Hinton F 5y VT