Sister concepts quietly shutter.

Marietta is short two restaurants.

Ritter’s, at 4719 Lower Roswell Road #210, and Paper Mill Grill, at 305 Village Parkway Northeast, both shuttered Monday.

Doug Brandenburg, owner of Premier Grease, first made What Now Atlanta (WNA) aware of the closure Tuesday. Brandenburg recycles the restaurants’ cooking oil.

Ritter’s and Paper Mill Grill were owned and operated by husband and wife team Ritter and Brigid Jones. Together they opened Ritter’s in April 2004 and Paper Mill Grill in February of 2008, according to the restaurants’ website.

The Jones family was not immediately available for comment and the restaurants’ voicemail boxes are full.

Developing…