There is information about her on familysearch.org but it is not in English and won't translate with the link.
familysearch is a free website you just need to register to use.
Good Luck in your search.
Dear Mr. Shinkaruk,
Thank you for posting your request on History Hub!
The National Archives is the repository for the permanently valuable non-current records of the United States Federal Government. We suggest that you contact the State Archival Service of Ukraine to request a search for the vital records of Pelageya Andreeva and her family. We also suggest that you search the Database of the Ukrainian residents born between 1650 and 1920 and review the FamilySearch Research wikis for Ukraine Archives and Libraries and Ukraine Genealogy.
We hope this is helpful. Best of luck with your research!