KRIEGERS Germans from Russia to ND

Pauline KRIEGER b. circa 1881 Russia. Married Gustav KONRAD, their first 6 children born in Russia.
Immigrated to Krem, Mercer County, North Dakota. Next 9 children born there. The family later moved to Montana,
working the sugar beet campaigns.

Seeking info on Pauline's parents, the area in Russia they were from,
and siblings, who also moved to North Dakota, maybe the Hazen area?

Believe there were brothers Fred, August, and Adolph. Also a sister, Adele.