 The Amino-acid Sequence in the Phenylalanyl Chain of Insulin

This is where he started publishing the sequence of insulin. The paper gives the full B-chain sequence, which it tentatively calls the "Phenylalanyl Chain" because it starts with a Phenylalanyl.

The official link seems to be: portlandpress.com/biochemj/article/49/4/463/47212/The-amino-acid-sequence-in-the-phenylalanyl-chain It seems to explain the methods very well at first glance, with lots of schematics.