Really Cool newspaper article here, from 1932! Then first lady of NY, Mrs. Elanor Roosevelt (F.D.R. was governor then) was at the opening of Brooklyn Sears! She made the first purchase there. She actually turned the key to open the store. Try to view this on a big screen computer, it's easier to read that way:
https://bklyn.newspapers.com/image/59980902/?terms=sears%20flatbush%20roosevelt&match=1
I take no Credit for this, I read it in this article:
https://www.thecity.nyc/brooklyn/2021/9/17/22680361/signs-sears-closing-last-nyc-store-brooklyn
Apparently 50,000 people showed up to the opening and Mrs. Roosevelt bought some children's clothes as the store's first ever purchase! Looks like the store's final purchase will be coming soon. Wonder if it will also be children's clothes?