We has been to Cherkassy State Historical Archive today. Consulted several microfilmed and original books of vital records for city of Kanev and city of Smela (1890s-1910s). Found a number of original records for Kanev and nothing relevant for Smela. Saying many thanks for archive personnel.
A few sample records will be added to the library soon.
Will be back in Cherkassy for more research.