I-J Sporting Goods was an outlet for Simpson & I would hazard a guess that they peddled Simson's wares, maybe including rubber baby buggy bumpers, until the Simson family was forced to relinquish control. There's been some offsite tangents and it would seem that J. Lovell Johnson(possible heir to J. P. Lovell Arms Co.?) seems to be the key here.

Kind Regards,

Raimey
rse