The singer, now 39, had two daughters with his long-term partner, a café owner and caterer who was found dead at their home in Gloucestershire aged 45.
The couple, who had two daughters, Elsie, 15, and Ada Rose, five, married in 2006 but Gill was pictured without her wedding ring last summer and had her relationship status as single on Facebook.
Gill Catchpole, the wife of singer James Morrison who has died aged 45, is said to have appeared in photos without her wedding's ring before her death and was looking for a new flat.