[Avodah] Ushpizin and Sheva Brachos

[saul mashbaum]

I wrote on Avodah that according to the order of ushpizin which puts Moshe 4th and Aharon 5th, their "days" always fall out on the same day of the week as
their (previous) yahrzeit (7 Adar/ 1 Av).

In an off-list communication, an Avodah member said he heard a shiur in which it was claimed that "it [yahrzeit/day of ushpizin] applies to all seven ushpizin"
 
The writer said he did not know the details of this correspondence for the other ushpizin. 

I can add one more, which indeed confirms this claim:
The yahrzeit of David Hamelech is well known to be on Shavuot. And in fact, Shavuot (first day) always falls out on the seventh day of Succot, which is David's day. 

I would be interested if anyone can provide midrashic material on the yahrzeit of the other Ushpizin.

Saul Mashbaum