J.M. Johnson

J.M. Johnson was president of Louisville Bridge and Iron Company for a time, but apparently began his own consulting engineering practice.

Eggner's Ferry Bridge (Marshall County, Kentucky)
Consulting Engineer, 1932
Lost through truss bridge over Tennessee River on US 68/KY 80
Replaced by a new bridge

South Cross Creeks Bridge (Stewart County, Tennessee)
Plans and specifications, 1902
Abandoned Pratt through truss bridge over South Cross Creek