I am working on a topic on Napoleon and the Jews - that should include this information. Of course there are wonderful date converters so it is possible to know the Hebrew dates. But if I want to know what was the weekly portion I can only find that in our present year the week of 11 Heshvan meant reading the Portion Lech Leacha (on Abraham going out of Ur). But it is not sure for each year.
I hope I'm not breaking the rules by not knowing the answer to this, but just looking it up.
I found a website called hebcal.com that also gives Lech Le'cha as the parasha for that date.