Arthur MacArthur Sr.

Arthur MacArthur Sr. was a Scottish American immigrant, lawyer, politician, and judge. He was the fifth lieutenant governor of Wisconsin, serving from 1856 to 1858, and during that term he served for 4 days in March 1856 as the fourth governor of Wisconsin, due to the dispute over the results of the 1855 gubernatorial election. After his term as lieutenant governor, he served a decade as Wisconsin circuit court judge for Milwaukee and Waukesha counties (1858–1869). He was then appointed an associate justice of the Supreme Court of the District of Columbia, serving from 1870 to 1887.