Parents Karel a Marie Müller, around 1930

Dad Karel Müller as an artillery lieutenant during the mobilization in 1938

Exercise of Břevnov Sokol, Prague-Mariánka, Jaroslav Müller sixth from the right, circa 1945

Exercise of Břevnov Sokol, Prague-Mariánka, Jaroslav Müller fourth from the right, circa 1945

Jaroslav Müller (middle) at the PTP, excavation of the Milovice water supply system, 1953

PTP unit of the Milovice water supply system

Muller's wedding, Prague, 1964

Tennis club Prague-Břevnov, 1930s

Dad Karel Müller playing tennis, Prague-Břevnov Club, 1930s

Petr Lutka in 2020

A portait of Petr Lutka from that time, around 1975

During a concert, mid 1970s

During a concert with the violinist Jan Hrubý, early 1980

During a concert with Emil Pospíšil, early 1980

Petr Lutka and Emil Pospíšil, beggining of 1980s

Petr Lutka during a concert in 2010

Petr Lutka and Pepa Nos during a concert in Krumlov

During a concert at the folk festival in Pezinok, late 1970s

During a concert, a first half of 1970s

Petr Lutka during a concert, mid 1970s

Věra Styblíková, Hradec Králové, August 2020

Petr Lutka, mid 1970s

Detail of collection of illustrations that Oldřich Kothbauer drew for his daughter Jitka when he was in prison

A stolperstein in Tišnov

Notes in the Bible that Oldřich Kothbauer had with him in prison