A photo of Karel Plhák, senior, the 21st regiment of the Czechoslovak legions in France.

A photo of Karel Plhák, senior, the 21st regiment of the Czechoslovak legions in France.

A photo of Karel Plhák, senior, the 21st regiment of the Czechoslovak legions in France.

A photo of Karel Plhák, senior, the 21st regiment of the Czechoslovak legions in France.

Karel and Ellen Plhák - owners of hydroelectric power plant in Háj u Třeštiny

Karel Plhák yr. - the son of the owners of hydroelectric power plant in Háj u Třeštiny

Karel Plhák Sr (marked) in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr (marked) in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr (marked) in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr (marked) in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr (marked) in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr with his mother. Later, the owner of hydroelectric power plant in Háj u Třeština.

Karel Plhák Sr in the 21st regiment of the Czechoslovak legions in France

Karel Plhák Sr in the 21st regiment of the Czechoslovak legions in France

The mill in Háj u Třeština prior to burnout

Soňa Jelínková (Straková) with her sister Věra

Soňa Jelínková (Straková)

Engine room of the hydro power plant in Háj u Třeština, which is now a national monument

Hydro electric power plant in Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument

Construction of hydro power plant at Háj u Třeštiny, which is now a national monument