Here's the first of two pics I have of all five of the Mikolajczyk siblings: Kate, Kasia, and the three brothers in between them (Jan, Janek, and Janusz, in order of age). Kate and Kasia are separated by about 10 years, so this particular pic shows a younger Kasia alongside her big sis in her early 20s, with the brothers peppered through the middle.

Art by  WitchOfAvalon