At that time it was the second largest Edison illuminating company in the United States, only the one at the Pearl Street Station, New York City, was larger.
Organizing this company McLaughlin was its Secretary and Manager during the construction of the plant and the first two years of its operation placing it upon a good paying basis.
Prior to serving as lieutenant governor, McLaughlin was also a successful real estate developer in and around Detroit, MI.
McLaughlin was president pro tempore of the Michigan Senate in 1895 when Lieutenant Governor Alfred Milnes was chosen in a special election to replace Julius C. Burrows in the U.S. House.
[clarification needed] Joseph R. McLaughlin, Paul C. Murphy, and Frank F. Mead pressed ahead with development [of "Laurelhurst"].