Because malorossian(ukrainian)-speaking population usually was uneducated (...) Many was illiterate at all.
Um... In 1945? It seems you don't give enough credit to communist education :P:
A quote from the same link from Wikipedia:
"The Soviet-backed education system
dramatically raised the literacy of the Ukrainophone rural population. By 1929 over 97% of high school students in the republic were obtaining their education in Ukrainian and
illiteracy dropped from 47% (1926) to 8% in 1934.Simultaneously,
the newly literate ethnic Ukrainians migrated to the cities, which became rapidly largely Ukrainianized - in both population and education."
just like seasonal workers
Yeah, the "seasonal worker" Ivan Danilovich Chernyakhovsky comes to mind, born in a small Ukrainian village near Kiev, who spent his early years as a herdsman and later became not only the commander of the said 60th Army, but also, apparently, the youngest general in the Soviet Army? 🙄
There IS Kazakhs (column 10), Georgians (column 5), Chechens and Ingush (column 15). Even Poles (column 34). 40 nationalities total, column 41 is a total sum.
Are you talking about the 60th Army in January 1945?