When David Jacob Coski was born on 11 June 1890, in Kansas, United States, his father, Johann Adalberth Kukowski, was 36 and his mother, Antonia Weronika Knitter, was 31. He married Josie Ellen Nicolay on 3 August 1918, in Manhattan, New York City, New York, United States. They were the parents of at least 1 son and 1 daughter. He lived in Roseberry, Valley, Idaho, United States for about 5 years and Roseberry Election Precinct, Valley, Idaho, United States in 1940. He registered for military service in 1919. He died on 3 December 1944, in McCall, Valley, Idaho, United States, at the age of 54, and was buried in McCall Cemetery, McCall, Valley, Idaho, United States.
Some characteristic forenames: Finnish Eino, Tauno, Arvo, Toini, Aarne, Armas, Ensio, Mikko, Reijo, Reino, Toivo, Eero.
Finnish: ornamental name from koski ‘waterfall’, ‘rapids’. This was one of the many words denoting natural features that were used in the formation of Finnish surnames during the name conversion movement in the 19th and early 20th centuries. In the US, this is sometimes a shortened form of other Finnish surnames formed with this element, e.g. Kalliokoski, Ylikoski.
Polish: habitational name from any of several places called Koski, named with kos ‘blackbird’. In the US, this may also be a shortened (and shortened) form of some longer surname of Polish origin ending in -ko(w)ski or beginning with Ko- and ending in -ski.