♂ Henry Frank Lenser

1895 - 1972


Heinrich Franz

Henry Frank Lenser
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Augusta W Koschnitzki
Augusta W Koschnitzki
1860 - 1940
Albert G Lenser
Albert G Lenser
1862 - 1953
Helen Louise Clinger
Helen Louise Clinger
1900 - 1968
Anna Lenser
Anna Lenser
1887 - 1963
Otto Lenser
Otto Lenser
1891 - 1968
Paul G Lenser
Paul G Lenser
1892 - 1975


Apr 21
Age: 1m
1895 Wilhelm Röntgen discovers a type of radiation later known as X-rays.


Age: 21y


Venango County, Pennsylvania, USA ⇓
During World War 1, he worked under base hospital 57, which served in France. The photo is of base Hospital No. 57, which "took over a large school building and functioned...as a part of the Paris district. There the normal bed capacity of the hospital was 1,800, distributed in 75 wards; but during October, 1918, as many as 2,000 sick and wounded were in the hospital." The draft notes that he was drafted in 1917, and starting in 1918, he served in the army at the medical department in an "Evac hospital". Base Hospital 57 "sailed from Brest, France, August 13, 1919, and arrived in the United States August 22, 1919, aboard the KaiserineAugusta Victoria, and was demobilized shortly afterwards."
4 Sources ⇓
1917 Vladimir Lenin's April Theses are published.Pravda. They become very influential in the following July Days and Bolshevik Revolution.


Age: 24y
1920 • In Emeryville, California, the first dog racing track to employ an imitation rabbit opens.


Age: 27y


Helen Louise Clinger
Oil City, Venango, Pennsylvania, USA ⇓
After their marriage, they moved to 12 Pearl Avenue, Oil City. The house was built in 1900.
1922 • Italian forces occupy Misrata in Libya. The reconquest of Libya begins.


Age: 34y

birth of child

Lois Lenser
1930 Canadian adventurer William "Red" Hill, Sr., makes a five-hour journey down the Niagara Gorge rapids.


Age: 34y
1930 Princess Margaret Rose is born at Glamis Castle in Scotland, younger daughter of Prince Albert, Duke of York (second son of King George V and Queen Mary, and later King George VI) and Elizabeth, Duchess of York, and sister to The Princess Elizabeth.


Apr 27
Age: 47y
1942 Polish-Jewish teacher Janusz Korczak follows a group of Jewish children into the Treblinka death camp.


Apr 23
Age: 56y
1951 • The trial of Ethel and Julius Rosenberg begins.