October 14 and 15, 1952: Patty and Violet's Party

I mostly remember Patty and Violet for the times they double-teamed Charlie Brown in the classic age of the strip. If one interprets Charlie Brown as a stand-in for Charles Schulz himself, a view that may have some merit, that may indicate problems with female figures. I think it is possible to read too much into this, however; mostly it just serves to develop Charlie Brown's pessimistic personality a little more.

Also: rats!

November 23, 1951: Patty & Violet Team Up

Violet's status as younger than Charlie Brown and Patty seems to have been abandoned. The two are starting to double-team him as well.

Can you believe that, at just over thirteen months of the strip in, we're over halfway through Peanuts' early period already? If you don't believe me, take a sneak peak at the strip that appears one year after this one. In the next year are introduced Lucy and LinuxLinus, and Snoopy starts getting thought balloons.

EDIT: Fixed the link. Thanks Zachary!