Hi, Bill! It sounds like your unspoken question here might be along the lines of whether Norman Mutton has siblings we can verify and add to the WikiTree family tree?
I checked first to see if I could get a primary source we can add for Norman Mutton, which might help substantiate your suspected connection, and I found a record for Norman J. Mutton's marriage to Evelyn Huggins on 20 Jun 1925 in Redford, Wayne, Michigan:
"Michigan Marriages, 1868-1925," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQ7K-KMG : 8 March 2018), Norman J. Mutton and Evelyn Huggins, 20 Jun 1925; citing Redford, Wayne, Michigan, v 11 p 172 rn 292359, Department of Vital Records, Lansing; FHL microfilm 2,342,772.
This record shows Norman's parents to be: William J. Mutton and Eliza Elliott, so now we can search for census or other supporting primary sources to include Norman's siblings.
And Voila! On 3 Jan 1920 at the time of the 1920 US Census, head of household William J. Mutton (age 60, born in Canada) was employed as a Dealer in his own Creamery and living in a home he owned with a mortgage at 845 Baldwin in Detroit, Wayne, Michigan with his wife Eliza Mutton (age 55, born in Canada), daughter Ann B. Mutton (age 20, born in Canada), son Norman J. Mutton (age 18, born in Michigan), daughter Eva M. Mutton (age 15, born in Michigan), and son William L. Mutton (age 13, born in Michigan). William had immigrated to the USA in 1885 and was naturalized in 1900; Eliza immigrated in 1889 and was naturalized in 1900, and Ann immigrated in 1900 and was naturalized in 1900. Norman Mutton was working as a Driver for a Creamery. William's father was born in Canada and his mother in England. Both of Eliza's parents were born in Ireland.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZWB-SC4 : accessed 22 March 2018), Norman J Mutton in household of William J Mutton, Detroit Ward 17, Wayne, Michigan, United States; citing ED 538, sheet 2A, line 37, family 33, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 816; FHL microfilm 1,820,816.