[3] Ahnger worked for the Russian railway and telegraph services from the 1880s until the early 1930, stationed in different locations around the country including Irkutsk, Omsk, Ashgabat, Kokand and Taganrog.

[3] On his extensive travels and postings around Russia, Ahnger collected over 60,000 insect and other specimens.

[2] He also established several museums in the cities he was posted to, and received a silver medal from the Russian Geographical Society for his scientific efforts.

[2] Over thirty species are named after him, including Anacanthotermes ahngerianus.

[4] His sister was the opera singer and teacher of voice Alexandra Ahnger.