The 'keepers' quarters, as illustrated in a drawing, had a single bedroom, a kitchen with a cookstove and a sitting room with a brick lined corner fireplace. There was a central hall from the only door into the tower. In the 1880's, a period of high water forced the threshold of the door to be raised about 15 inches and a concrete porch was added, which has since broken apart thanks to the fury of Lake Erie.

The original revolving light was ordered by engineer George Keefer from England in February 1848 along with the new light for the Long Point Lighthouse. These lights enlisted ten coal oil lamps with 'catoptric reflectors' revolving a beam of light visible for ten miles. The Mohawk Light was seen for 225 degrees only, so it would not aggravate the local settlers on the mainland of Sherbrooke Township. The access to the lantern room was a series of stairways through six wooden floors, that the keeper had to climb every six hours in order to 'change the works,' a method of pulling up a counter weight the distance of sixty feet to keep the light rotating. Lighthouses advanced with technology. After coal oil, the use of kerosene increased illumination by a factor of four, and was used until a Canadian development, we still call acetylene, revolutionized lighthouses the world over.