Zayin Adar is also the yahrzeit of:
Reb Shlomo Ephraim ben Reb Ahron of Lunshitz ZY"A, Kli Yakar
Reb Yitzchok Isaac ben Moshe Yechezkel Taub of Kaliv ZY"A
Here is a link to tefilos from Likutei Tefilos for Zayin Adar. They are on pages 78-99.
Here is a post about what to do on the yahrzeit of a tzadik.