After returning from his war service, Keenor met Muriel Mary Griffiths, a church organist from Swansea who had worked in a munitions factory during the First World War.
They were married soon after they met, on 11 November 1919.
The pair had their first child, Frederick, in May 1920.
The couple went on to have seven children; their last child, Graham, was born in 1931.
After establishing himself in the first team at Cardiff, he moved to Whitchurch, in a house that he had designed and helped build, and became a keen gardener, growing his own vegetables in the garden.
He also purchased an Irish Terrier and entered the dog in local competitions.

Keenor's diabetes along with his hard-living lifestyle – perhaps a consequence of his tough upbringing – eventually took its toll.
Following his retirement from playing professional football in the Football League, his ill health made it difficult for him to find work and earn a living.
Supporters of Cardiff City held a collection during one league match to raise money for Keenor and his family.
The Football Association of Wales also organised a fund for him as well as donating him some money.
After a long spell in hospital for treatment of his diabetes, Keenor moved his family to Lamberhurst in 1935 to recuperate.
There he and his wife ran a corner shop and raised chickens to be sold at Christmas time, alongside his player-manager role with Tunbridge Wells Rangers.
He later worked at a petrol refinery in the nearby town of Hove, and volunteered for the Territorial Army, serving as a sapper in the Royal Engineers.
He was discharged in June 1939 due to continuing problems with his diabetes treatment, just months before the start of the Second World War.
Two of his sons, Frederick and Alfred were killed in action during the conflict.
Keenor and his wife later visited the village of Fruges in northern France, where Alfred's plane had been shot down.

After the end of the Second World War, Keenor worked as a builder's labourer for several years, waking up in the early hours each morning to catch a lift in a newspaper delivery van before walking the remaining five miles to the site.
He returned to Cardiff with his wife in 1958, being employed as a storeman in the building department of Cardiff Corporation.
Muriel, his wife of nearly 50 years, died in 1967 when a gas leak outside their home went undetected and filled the house with poisonous gas, leaving Keenor hospitalised after being discovered by a neighbour.
He made a full recovery but was deemed to need full-time care and moved into a residential nursing home in Gabalfa.
He continued to attend Cardiff matches until his death on 19 October 1972.
His ashes were buried in Thornhill crematorium in Cardiff.
His son Graham, who had joined Cardiff City as a youth player but never appeared for the first-team, served as club secretary following the resignation of Trevor Morris between 1959 and 1972.
He left the post just days after his father's death.
After returning from his war service, Keenor met Muriel Mary Griffiths, a church organist from Swansea who had worked in a munitions factory during the First World War. They were married soon after they met, on 11 November 1919. The pair had their first child, Frederick, in May 1920. The couple went on to have seven children; their last child, Graham, was born in 1931. After establishing himself in the first team at Cardiff, he moved to Whitchurch, in a house that he had designed and helped build, and became a keen gardener, growing his own vegetables in the garden. He also purchased an Irish Terrier and entered the dog in local competitions.
Keenor's diabetes along with his hard-living lifestyle – perhaps a consequence of his tough upbringing – eventually took its toll. Following his retirement from playing professional football in the Football League, his ill health made it difficult for him to find work and earn a living. Supporters of Cardiff City held a collection during one league match to raise money for Keenor and his family. The Football Association of Wales also organised a fund for him as well as donating him some money. After a long spell in hospital for treatment of his diabetes, Keenor moved his family to Lamberhurst in 1935 to recuperate. There he and his wife ran a corner shop and raised chickens to be sold at Christmas time, alongside his player-manager role with Tunbridge Wells Rangers. He later worked at a petrol refinery in the nearby town of Hove, and volunteered for the Territorial Army, serving as a sapper in the Royal Engineers. He was discharged in June 1939 due to continuing problems with his diabetes treatment, just months before the start of the Second World War. Two of his sons, Frederick and Alfred were killed in action during the conflict. Keenor and his wife later visited the village of Fruges in northern France, where Alfred's plane had been shot down.
After the end of the Second World War, Keenor worked as a builder's labourer for several years, waking up in the early hours each morning to catch a lift in a newspaper delivery van before walking the remaining five miles to the site. He returned to Cardiff with his wife in 1958, being employed as a storeman in the building department of Cardiff Corporation. Muriel, his wife of nearly 50 years, died in 1967 when a gas leak outside their home went undetected and filled the house with poisonous gas, leaving Keenor hospitalised after being discovered by a neighbour. He made a full recovery but was deemed to need full-time care and moved into a residential nursing home in Gabalfa. He continued to attend Cardiff matches until his death on 19 October 1972. His ashes were buried in Thornhill crematorium in Cardiff. His son Graham, who had joined Cardiff City as a youth player but never appeared for the first-team, served as club secretary following the resignation of Trevor Morris between 1959 and 1972. He left the post just days after his father's death.
Fred Keenor