Probably:

The birth of James A. Corbett was registered in Rotherham, Yorkshire, England, during the second quarter of 1912. The maiden name of his mother was Leonard.

Also in 1912 was the birth of a James Corbett registered in Ecclesall Bierlow, Yorkshire, England, during the third quarter. The maiden name of his mother was Marsh.

The marrige of James A. Corbett to Doris I. Green was registered in North Bierley, West Riding of Yorkshire, England, during the second quarter of 1937.

The death of a James Arthur Corbett, born 05 May 1912, was registered in Doncaster, South Yorkshire, England, in January 1997.