Vintage Sewing Pattern Community

Does anyone have tips on finding specific vintage patterns? I've been using search on Etsy, eBay, and Vintagesewingpatterndirectory.com but can never find what I'm looking for. I'm searching the pattern brand and number - for example, Vogue 4971 or the brand, year, and number - like Vogue 4971 from 1959. If there a better way to search?

Specifically I'm looking for patterns featured in the Vogue Pattern Book from 1959. I have the UK version of these magazines, so maybe the patterns were released under different numbers in the US?