During that time he worked with various groups and former members of Fotheringay. In 1972, Lucas organised and produced a one-off album "The Bunch" which featured 12 classic oldies favourites performed by past and (then) present members of Fairport Convention, as well other friends. He became a session musician and record producer for Bronco, Julie Covington, Al Stewart, The Strawbs and Richard & Linda Thompson. During July and August 1972 Lucas helped Fairport Convention record their album Rosie (February 1973) and brought Jerry Donahue in for several tracks. Subsequently he and Donahue joined the group. On 20 September 1973 Lucas and Denny married and shortly thereafter Denny rejoined Fairport Convention. In late 1975 Fairport started a long promotional tour and shortly afterwards Lucas, Denny and Donahue left the band. Lucas and Denny left because "[w]e'd spent eight months on the road touring, and we'd been thinking of having a family and all that sort of thing". Lucas assisted on Denny's further solo work. In the mid-1970s the couple relocated to the village of Byfield in Northamptonshire, in July 1977 Denny gave birth to their only child, a daughter, Georgia Rose Lucas. Later years Sandy Denny had suffered from substance abuse problems for some time, and by 1977 her addictions were obvious to others. Linda Thompson told The Guardian that shortly after the birth of their daughter Georgia in July 1977, Denny "was crashing the car and leaving the baby in the pub and all sorts of stuff." Thompson also noted that the child was born prematurely, yet Denny seemed to have little concern for her new baby. In late March 1978, while on holiday with her parents and baby Georgia in Cornwall, Denny was injured when she fell down a staircase and hit her head on concrete. Following the incident, Denny suffered from intense headaches; a doctor prescribed her the painkiller Distalgesic, a drug known to have fatal side effects when mixed with alcohol. On 13 April, concerned with his wife's erratic behaviour and fearing for his daughter's safety, Trevor Lucas left the UK and returned to his native Australia with their child. Four days later, Denny collapsed and fell into a coma while at a friend's home. Lucas returned immediately to London, leaving Georgia in the care of his parents. On 21 April, she died at Atkinson Morley Hospital in Wimbledon. Her death was ruled to be the result