Severinghaus' brothers following in other famous brothers' footsteps?

Bob's worn out bicycle is still in our garage. On Sunday, the boys decided it needed to be useful again. A drill, lots of tinkering, oily hands, oily clothes, and there is a new contraption on display. I remember from history some other brothers' whose tinkering began in a humble garage.... are these two boys following in their footsteps ?

I wonder if Mother Wright would have some good tips on how to get oil out of nice church clothes an white shirts?