Roxy -
Further to the 17th Bde and the RSF's actions at Anzio - they would have been in the area of Adrea or in between the Moletta River and the Incastro Rivers close to the highway leading to Albano on or about the 29th may '44
here is a map of the area - if I can manage it .....
http://www.history.army.mil/brochures/anzio/map4.JPG