In 1926 he helped form the private company , the Greyhound Racing Association ( GRA ) .
After the war Critchley involved himself in a number of business ventures in Central America before returning to the UK where he became a director of Associated Portland Cement .
In 1926 Critchley helped form the private company , the Greyhound Racing Association ( GRA ) .
After the war Critchley involved himself in a number of business ventures in Central America before returning to the UK where he became a director of Associated Portland Cement .