Future Site of Cook County, 1915

 

 
The area outlined in red marks the portion of Berrien County used to form Cook County in 1918. Complicating the new county's boundaries was the fact that the legislature had previously transferred several land lots in southern Berrien County to Lowndes County (the area in pink above). These were not mentioned in the 1918 constitutional amendment as going to Cook County, so the pink area remained in Lowndes County. Apparently, the intent of the legislature was that the Cook-Lowndes County border be a straight east-west line. The 1918 constitutional amendment allowed the legislature to subsequently make corrections in the boundaries of the new county, so in 1919, the legislature transferred the affected land lots to Cook County.
 
Source: Hudgins' Map of Georgia, 1915

Cook County Historic Maps

Historical Atlas of Georgia Counties