Index by Year of Birth
* 1833 in Krzemieniec
+ 1876 in Saint Petersburg
Aleksander Piotr Czekanowski, or Aleksandr Lavrentyevich
was a Polish geologist and explorer of Siberia during his exile
after participating in the January Uprising.
He took part in and later led several expeditions, surveying and
mapping the geology of Eastern Siberia.
2021 J. Giesen