In certain emergencies he was called to assist his father, and was paid for it.

He even made an arrangement with Mr.Dalrymple to assist him on Saturdays; but when his father became cashier of his bank, receiving an income of four thousand dollars a year, shortly after Frank had reached his fifteenth year, it was self-evident that Frank could no longer continue in such lowly employment.
Just at this time his Uncle Seneca, again back in Philadelphia and stouter and more domineering than ever, said to him one day: "Now, Frank, if you're ready for it, I think I know where there's a good opening for you.

There won't be any salary in it for the first year, but if you mind your p's and q's, they'll probably give you something as a gift at the end of that time.

Do you know of Henry Waterman & Company down in Second Street ?" "I've seen their place." "Well, they tell me they might make a place for you as a bookkeeper.
They're brokers in a way--grain and commission men.

You say you want to get in that line.