Please help me to understand the following phrase concerning a government bond found in a will from 1791.

Testator: John Bielman

"I order that the four following described bonds (or the money arising from them be equally divided amongst my daughter Christiana Moler's children as they shall respectively come of age but if any of them die under age I order their share or shares to be equally divided amongst the rest) to wit No. 1 Christopher Beilman to John Beilman £35"10 due May 1st 1794, No. 2 Christopher Beilman to John Beilman £17"15 due May 1st 1804, No. 3 Peter Beilman to John Beilman £14"10 due May 1st 1794, No. 4 Peter Beilman to John Beilman £7"5 due May 1st 1804"

So.... How should be names on the bonds list be interpreted? Can we infer anything about the nature of the relationships among Christopher, Peter, and John?

Thank you in advance!
-Chris Irvin