Surprise was noted at receipt of an English response >from the Jewish Historical Institute of Poland. Most of the people I have met there are fluent in English. Yale Reisner is American and speaks and reads about five languages.
Happy Purim, Betty Provizer Starkman Bloomfield Hills, MI
Maybe I should have mentioned in my replies to those of you asking for the address of the above resource that I sent an International Postage Coupon with my letter.
Also, they replied in English which surprised me no end.