Rohleder (Ratsky), Russia was founded on June 14, 1766 with a population of 46 families, 111 males and 97 females totaling 208 souls.

1798 Census Records:
This colony lies in the district of the gubernia city of Saratav, at a distance of 40 versts, on the meadow side of the Volga River, along Bolshoy Karaman Creek.  There are 103 male inhabitants and 116 females, totalling 219 souls comprising 36 families of the Catholic faith.  They have their own church, but have never had a priest, although one was requested long ago and is sorely necessary.  The colonies bordered by those of the colonies of Herzog, Graf, Schaefer, and Urbach.

Those listed as heads of house in 1798 are listed.

The 1798 Census Records are available from A.H.S.G.R.

Those surnames listed in the 1834 Census records

The 1834 Census Records are available from Kevin Rupp

Those surnames listed in the 1850 Census records

The 1850 Census Records are available from Kevin Rupp