Name That Tune from Grey Gardens Documentary
 

I instantly became enchanted with this tune it sounds like it originated from the 1930s. However, I've done my best trying to find the name and it doesn't appear to be listed on any of the sources that I've checked for this documentary's soundtrack. The tune in particular starts playing at 1:45 and ends at 2:53. I will be greatly appreciate the individual who is able to provide the name of this tune. Thank you!

As a result of the rule about URL restriction on users who have made 15 or fewer posts. Here's how to find the video:

I. Go on Youtube.
II. Type: GreyGardens 1975 Part1 The Start edith beale.