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Isaac J. MacCollum
11th Lieutenant Governor of Delaware
In office
January 21, 1941 – January 16, 1945
GovernorWalter W. Bacon
Preceded byEdward W. Cooch
Succeeded byElbert N. Carvel
Personal details
Born(1889-08-18)August 18, 1889
Fenwick Island, Delaware
DiedMarch 4, 1968(1968-03-04) (aged 78)
Wyoming, Delaware
Political partyDemocratic Party
Residence(s)Wyoming, Delaware
Alma materWest Chester University

Isaac James MacCollum (August 18, 1889 – March 4, 1968) was an American physician and politician from Wyoming, in Kent County, Delaware. He was a member of the Democratic Party who served as the 11th Lieutenant Governor of Delaware.

Early life and family

MacCollum was born at Fenwick Island, Delaware. He graduated from West Chester Normal School, now known as West Chester University in 1910 and Jefferson Medical College in Philadelphia in 1914.

Professional and political career

MacCollum served on the medical advisory board during World War I and was president of the Delaware State Medical Society in 1930. He served as a member of the trustees at Delaware State Hospital for nine years, president of the State Board of Health for four years, and a member of the State Parole Board for 20 years, 16 of those years as president.

He was elected Lieutenant Governor of Delaware in 1940, defeating Republican candidate Earle D. Willey, Jr. of Dover, who was a Judge of the Court of Common Pleas. He served from January 21, 1941 until January 19, 1945, alongside Republican Governor Walter W. Bacon. In 1944 he ran for Governor against Bacon, but was defeated and returned to his medical practice full-time.

Death and legacy

MacCallum died in Wyoming, Delaware. He was a respected country doctor, described as "mainly just a kind, traditional doctor. He made house calls, which is something you don't see today. I am grateful to him -- he delivered my first baby."


Elections are held the first Tuesday after November 1. U.S. Representatives take office January 3 and have a term of two years.

Public Offices
Office Type Location Began office Ended office notes'
Lt. Governor Executive Dover January 21, 1941 January 19, 1945
Election results
Year Office Subject Party Votes % Opponent Party Votes %
1940 Lt. Governor Isaac J. MacCollum Democratic Earle D. Willey Republican
1944 Governor Isaac J. MacCollum Democratic 62,156 49% Walter W. Bacon Republican 63,829 51%

Places with more information

Party political offices Preceded byJosiah Marvel Jr. Democratic nominee for Governor of Delaware 1944 Succeeded byElbert N. Carvel