Thomas M. Blackstock (January 12, 1834 – February 27, 1913)[1] was a Scotch-Irish American immigrant, businessman, and Republican politician.

[2] He and his sisters were left in the care of family when his mother emigrated to the United States, they followed with their aunt several years later, in 1848.

[2] Through his business success, he came to own substantial real estate in the city and formed the South Sheboygan Land Company to manage the property.

[2] In 1882, the Blackstocks had an Italianate style home built for them on a small hilltop site in the Ellis Addition area of Sheboygan,[6] which is now listed on U.S. National Register of Historic Places.

[6] Blackstock is credited with the establishment of the Civil War soldiers' monument at the southeast corner of Sheboygan's Fountain Park.