Thanks very much for your help.
At this early point in my research I have assembled only photos and a few related facts, no documents.
An online search has revealed that my father raced the car at Iowa City and Chanute during the summer of 1954. I have also found a letter to him from E. de la Torriente Jr, apparently an organizer of the first Cuban Grand Prix (Feb., 1957) who wrote that my father had sold the car to him and that it had been sold again and that the car finished third "in the sporting class". My mother has told me that she recalls traveling with my father to Nova Scotia to pickup the car, though she cannot recall any other details.
I'll post a few more photos soon ....