History / My Great Grand father took part in the Battle of Warsaw! [90]

My great-Grandfather was Konstanty Dowbor-Musnicki who was older brother of General Jozef Dowbor-Musnicki who fought against the Soviet army in 1918, I was wondering if anybody has any information on Jozef or his daughter, Janina Lewandowska (previously Dowbor-Musnicka) for my dissertation project.