The 115th Congress is among the oldest in history

[Wingnut]

Today the average American is 20 years younger than their representative in Congress. This should come as no surprise, considering that over the past 30 years the average age of a Member of Congress has increased with almost every new Congress. In 1981, the average age of a Representative was 49 and the average of a Senator was 53. Today, the average age of a Representative is 57 and the average of a Senator is 61. This prompted us to take a further look at those graying averages.

Democratic leaders in the House are two decades older than Republican leaders.
The average age of the Democratic House leadership is 72 years old, whereas the average age of Republican House leadership is 48 years old. This trend continues in House committee leadership with Republican chairmen averaging 59 years old and ranking Democrats averaging 68 years old.
https://www.quorum.us/data-driven-insights/the-115th-congress-is-among-the-oldest-in-history/175/?fbclid=IwAR2cUhrAJKzLqnnIbISMsivQsseEXMoBkeuvKbclIChYqC_07CLI-F7FzVA

and

https://www.senate.gov/CRSpubs/b8f6293e-c235-40fd-b895-6474d0f8e809.pdf