I’m in South Africa, and I’m only a hobbyist. I do know that the ASTM for USA are available for purchase. And if you google the books on how to make patterns, they all have a standard set in the front of the book of the measurements they teach.
In this chat, you’ll find a link to a very old pdf that I found on the internet - American Standard Size Tables
I’ve put the multisize from the Aldrich book on the pattern cloud, if you’d like to go over there & download it. In fact, I’m sure if you do a search, you may even find it on here. But I believe Winifred Aldrich is UK.
Gradations - You will find a set of my Adrich Women’s Multisize in this chat
I hope this helps