Shulz was born in Friedensthal, a Bessarabia German community in the Russian Empire, from 1918 part of Romania and today Mirnopolye, Ukraine. He came to Canada with his wife in 1930 to become a farmer in the Gilbert Plains area of Manitoba. He joined the co-operative movement and became involved in municipal politics.
In 1950, Schulz became founding president of the Manitoba Farmers Union and served as chairman of the Interprovincial Farm Union Council in the mid-1950s. He was elected to Parliament in the 1957 general election representing Springfield for the Co-operative Commonwealth Federation. He only served for a year before losing his seat in the 1958 federal election that elected a landslide majority government for the Progressive Conservative Party of Canada.
Shulz founded a construction company in 1960 and wrote a book, The Rise and Fall of Farm Organizations.
- Jacob “Jake” Schulz (1901-1983) at the Manitoba Historical Society site
- "Jacob Shulz", Canadian Press, August 17, 1983
- "Saskatchewan Farmers Union", Encyclopedia of Saskatchewan