Engine Historians Out There?

I've never done any scholarly work, but know Oliver used a wide variety of engines, primarily Waukesha early on, maybe after 1930. But originally Hart & Parr had developed their own engine design, in the predecessor to Oliver. Which brands had their own in-house designed & produced engines? I am no mechanic at all, but John Deere 2-cyl and Minneapolis-Moline semed to have unique designs. Massey used Perkins quite a bit I think. Appreciate your knowledge.

Deere obtained the horizontal two-cylinder design when they purchased Waterloo in 1918.

I am not a history expert either and I am sure there are more to add to the list.

Case
Ford
Duetz
International

Massey Harris used Continental engines, some of which were Massey design. Ben

As far as I know Deere continues to build all of the engines for their main line row crop tractors. But in the case of some utility tractors they use Yamar and other brands.

As far as I know, Case built their own engines going back for a good many years. Massey also had Continental and Perkins. My Cockshutts had Buda engines but later series used Hercules.

Actually as far as Oliver goes, they were technically Oliver/Waukesha engines. They were jointly designed by the two companies to Oliver specs. Oliver would cast the blocks and heads in their foundry. Send them back to Waukesha for machining and assembly then bring them back to the factory. Then later models like the 1850 used a 354 Perkins, and the 2050/2150 used a White/Hercules designed 478 engine.

I posted some pictures of a 1917 Bull tractor recently, apparently the engines were made by the Toro company, all in Minneapolis.

TWIN CITY OVERHEAD CAM...BE BLESSED, GRATEFUL, PREPARED...

They use Cummins in the big tractors and forage harvesters.

Farmall used Waukesha

(quoted from post at 06:31:38 07/25/17) Farmall used Waukesha

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armall also used a Continental engine in the 350 diesel.

I'm not claiming to be an expert, but here it goes. Antique power just had an article about CASE's early tractor attempts and the so called Patterson tractor because of the engine being a copy of the Patterson engine which was designed in California by the Paterson brothers. The later attempt at the successful tractor seemed to have Case power but was a frame built by Minneapolis. Shortly after in the teens and twenties CASE was all in house. Now I do recall a link between CASE, Massey, and Wallis.

There were a lot of tractors built in the Midwest in the early tractor years and a lot of those had similarities because the competing companies would hire away or a designer would move on after a failed attempt at a company. I believe the Bull used a Gile engine as did the off brand Ford built in. All of those companies had ties to Minneapolis and likely had some of the same engineering so the both used components familiar to the designer. I have read that two men started the Transit Thresher Company in Minneapolis. The developed the Big 4 and later sold to Emmerson Brantingham. The two men went on to Bull which turned into TORO. One of the men went onto Happy Farmer who merged with STA-RITE engine company and used a in house engine similar to that Gile called a La Crosse.

I know some of the early MM/ TC's used Waukesha, but others of the same period used MM engines. I recall reading an article years back that pointed out the similarity of the early HOLT engine and the Twin City engines. Buda was used by some builders up to and even after Allis Chalmers bought Buda. The later years saw Detroits and Cats used in some models as well.

C.H. Wendel's book "Encyclopedia of American Farm Tractors" does a good job of detailing a lot of those connections and details.