If your bill has a blue seal and has the words "National Currency" on its front, it's worth between 60 and 90 dollars.
Please check your bill again and post a new, separate question. The Federal Reserve System wasn't established until 1913 and the first Federal Reserve Notes are dated 1914.
The first $20 Federal Reserve Notes were dated 1914. Please check your bill again and post a new, separate question.
Please check your bill again and post a new, separate question. The US didn't print any $50 Federal Reserve Notes dated 1923. Your bill may be dated 1928.
Probably slightly over face value
Priceless. The first Federal Reserve Notes were printed in 1914.
The only Federal Reserve Notes dated 1976 are $2 bills. In circulated condition they have no added value.
Please check your bill again and post a new, separate question. The Federal Reserve System wasn't established until 1913 and the first Federal Reserve Notes are dated 1914.
The first $20 Federal Reserve Notes were dated 1914. Please check your bill again and post a new, separate question.
Please check your bill again and post a new, separate question. The US didn't print any $50 Federal Reserve Notes dated 1923. Your bill may be dated 1928.
There were no series letters on any 1929-dated US bills. A large "G" indicates that the bill was distributed through the Chicago Federal Reserve District. There's more information at the question "What is the value of a 1929 US 5 dollar Federal Reserve Note?"
If very worn, about $15. Moderate wear, about $30
The value of a 1928 twenty dollar bill that says "The Federal Reserve Missouri Bank of St. Louis" would actually depend on a number of things. The main factor that should be considered when determining value would be the condition of the bill.
Probably slightly over face value
The US didn't print any bills dated 1939. Please check again and post a new, separate question. Also note that H is the indicator letter for the St. Louis Federal Reserve district rather than a series letter. The series letter, if any, on a US bill is next to or below the date.
More than 12 varieties were made. See the related link below for the values.
Priceless. The first Federal Reserve Notes were printed in 1914.
Please check again and post a new, separate question. No US bills are dated 1961.