William David Thomas (March 22, 1880 – May 17, 1936) was an American pharmacist and politician from Hoosick Falls, New York.

A Republican, he was most notable for his service as a member of the United States House of Representatives from New York, a position he held from 1934 until his death.

In January 1934, Thomas won a special election for a seat in the United States House of Representatives.

[1] In 1906, he purchased his partner's share, after which he owned and operated the business as Thomas Pharmacy.

[3] In 1934, Thomas was elected to the United States House of Representatives, filling the vacancy caused by the death of James S.

[6] In the mid-1930s, Carolyn Thomas asked Moses to take part in a display for the Hoosick Falls Women's Exchange.

[6] Several of Moses' paintings were exhibited at the Thomas Pharmacy as part of this project, and they were noticed by art collector Louis J.

[7] Caldor purchased them and began to publicize and exhibit Moses' work, which led to her achieving international fame.