I've posted several of the Marion Steam Shovels, but I only just learned it was an offshoot of the Huber tractor business, and that Marion made the shuttle launch pad crawler

The Huber Manufacturing Company of Marion, Ohio was founded by Edward Huber in 1854. Born on a farm in Indiana in 1837, he apprenticed to a blacksmith in his teens and later became a machinist and a wagon maker. He invented a revolving hay rake and moved to Marion to produce it. 

Huber was a prolific inventor and would eventually be granted 100 patents. By 1875 the company had added threshers to it’s catalog and by 1898 it was producing a line of portable and traction steam engines. 

In addition to Huber Manufacturing, in 1884 he joined Henry Barnhart and George W. King to form the Marion Steam Shovel Company.

Between 1902 and 1911 the Marion Steam Shovel Co. provided 112 steam shovels to the Army Corp of Engineers for use in the construction of the Panama Canal. 

Marion products played an important role in the construction of railroads and highways, dredging harbors and waterways and mining operations throughout the 20th Century. They even made the launch pad crawler that was used for the moon missions and the Space Shuttle Program.

http://theironmule.blogspot.com/2016/10/huber-maintainer.html