Whibbs worked for the Pontiac division of General Motors beginning in 1940. He held positions in Buffalo, New York, Charlotte, North Carolina, Jacksonville, Florida, and Pensacola, Florida.
Whibbs worked for the Pontiac division of General Motors from 1940 to 1940s, holding positions in several cities like Buffalo, New York; Charlotte, North Carolina; Jacksonville, Florida; and Pensacola, Florida.