The series consists of material related to Margaret's Krenbrink's personal activism. Of note is a set of correspondence with Alderman Bewley regarding the issue of compact housing.

The fonds consists of textual material relating to Margaret Krenbrink's involvement in several organizations and associations in Coquitlam including the Ranch Park Ratepayers Association and the Coquitlam Teacher's Association. The fonds also includes some personal advocacy correspondence and a copy of the 1980/1981 Voter's List for the District of Coquitlam.

The series consists of records relating to Margaret Krenbrink's activities as President of the Ranch Park Ratepayers Association. Of particular note is the collection of materials relating to a campaign to stop the relocation of the Lougheed Highway in 1973.