After retiring as a footballer, Kerr established himself a worldwide reputation as a leading bloodstock agent.
He was the eldest son and second child of Joseph Kerr, who worked as a clerk with the Inland Revenue, and his wife, Mary, who originally came from County Laois.
[1] Kerr was educated at the O'Connell School in Dublin and by 1911, then aged 17, he was living at 3 St. Alphonsus Road in Drumcondra.
On 17 February 1924, while playing for Bohemians in the 1923–24 FAI Cup semi-final against Athlone Town at Shelbourne Park, he suffered a serious injury.
Kerr remained involved with Bohemians, throughout the remainder of his life serving as both a committee member and as a club vice president.
[3] Other members of the Ireland team included his Bohemians teammates, Jack McCarthy and Johnny Murray, as well Dinny Hannon, Ernie MacKay, Joe Kendrick, Tommy Muldoon, and Paddy Duncan.
On 14 June, Kerr made his third and final Ireland appearance in a friendly against the United States at Dalymount Park.
[4][5][6][7] In September 1920, with support from his father, Kerr founded his own insurance and bloodstock agency.
In 1956, Kerr attended the Newmarket sales, acting on the behalf of Fred Turner, a millionaire oilman and rancher from Texas.
Shortly after Tomy Lee won the 1959 Kentucky Derby, Kerr relayed to Michael O'Hehir the story behind the purchase.
After viewing Turner's first choice for Tuleg's travelling companion, Kerr was less than impressed and cabled him, advising him not to buy this particular foal.
"[8] Nearly eight years later, when Tomy Lee won the Kentucky Derby, Walsh provided Kerr with his own personal commentary.
Always keen to follow the progress of his purchases, even after they had been moved on, Kerr had tuned into the American Forces Network for a commentary on the race.
However, before it got underway, he received a phone call from Walsh, who was six thousand miles away in Hollywood watching the race on American television.
As well as buying and selling horses for others, Kerr & Co. Ltd ran a successful racing stable which was managed by Bert's younger brother Kevin.