[PW] Army Letter dated 1874

[sangpark at xsmail.com]

Hello,

I'm not sure I have enough information for anyone to be able to help.
This is what the patron asked:

In an Army letter dated 1874 is a phrase "...they sit and wait for Uncle
Davis' Money." Is there any way you can track down this saying and find
out what it is referring to?

Thanks in advance for your help.

Sang