Are These 2 US Notes Of Any Value?

The $5 series of 1899 certianly is worth money. The 1907 $10 is also worth money. Like coins, most of the value is dependent on condition. With currency however, there are other factors including the Friedberg number. This number is assigned to each little variety within the series.
How did you determine that 1 is UNC and the other is AU? If these notes are certified, their values are easier to assign. If they are raw notes, they will have to be viewed to determine value. If you post the closest city, I can provide a few dealers who will look at them for you. I strongly suggest that you DO NOT sell the notes until they are looked at by at least two dealers. I would also suggest that you put their offers here on the forum so that some of us can also make suggestions.
Checking realized prices on ebay will also help, but as your notes are higher grades, they may bring more in a different format.

Now as a rough idea:

1907 $10 Gold Certificate in AU : $325 to $750
1899 $5 Silver Certificate in UNC : $ 1650 to $2800

Scans of the notes would help a little, but cannot be exact as scans do not show light folds or fixed notes.