Hello, Mr. Li, since nearly 80 years have passed, the change of time is hard to find. This kind of thing should be done slowly, and the reward points should be kept step by step until it is most needed. The "road" that may be sought is longer:

1 Yuncheng is in Shanxi and Yuncheng is in Shandong.

There are many "Wuli", and almost every county has several Wuli.

"Wuli Lijiahai Village" proves that Lijiahai Village is relatively small. There is a Lijiahai village in Puyang, Henan province through search, but it may not be.

I suggest you go to Yuncheng, Shanxi, and Yuncheng County Archives Bureau, Shandong, where you can get many results.

I hope I can help you.