A good bank to go to is Wells Fargo. Since you are a yn, (like me) they are usually able to hold old bills for you. They once pulled out $800 in old currency for me to pick through! There was also a 1934 c $20 bill.
Quite possibly. Finding a jar of old hundreds is a pretty cool find. What are the series dates and districts of these stars? The district refers to the first letter of the serial. What are the series dates of the other hundreds from the jar?