I am pretty sure these photos are of this John Coleman.
Ambulance Corps
Ambulance Corps
Cricket team; John is on the right with glasses -- maybe the team manager?
Notes
ReRef: parish records of St. John's Church, Mansfield, fiche 8 of 22 p. 36 no. 284
In the 1911 England census, John 18 and his brother Horace 17 were living with their maternal grandfather, Charles Thrall.
This was the address that my aunts wrote to in the early-to-mid 1900s: Mr. John J. Coleman, 19, Harvey Ro. Long Lane, Hillingdon, Middlesex, England. Also John Coleman, 32 Walkden St., Mansfield, England.
I don't know what became of John -- I wish any relatives in England would find this family tree and get in touch. We have photos of him that he sent to my grandmother up until the 1940s.
There was a note in my mom's birthday book: John Coleman's wedding anniversary 23 May (no year); that may refer to this individual.
I have found a date of death in 1960 for a John J. Coleman age 67 in Mansfield, so I am assuming it is this same individual as the age and location seem correct (needs more research to confirm).
This John J. Coleman likely married Edith Marshall in Jul/Aug/Sep 1917, Mansfield; and he probably married Annie Geary in Southwell in Apr/May/Jun 1933. I have added his wife as Ethel and the two children from the birth index. I am assuming Annie was a second wife after his first wife died. In the 1939 England and Wales Register, Annie is his wife, and the two children are in the household. They are still at 32 Walkden St.
There is a birth record for a John J. Coleman in Mansfield in Jan/Feb/Mar 1923. Probably this is "Cousin Johnnie" in the photos we have; I am leaning toward that conclusion.