Please answer the following question: Facts: - residence: cerritos , california - birth name: donald r. knabe - successor: incumbent - party: republican - spouse: julie gillbreath - predecessor: deane dana - office: member from district 4 of the los angeles county board of supervisors - children: curt knabe matt knabe - birth date: october 15 , 1943 - term start: december 1 , 1997 - name: don knabe - image: file : don knabe.jpg - birth place: illinois - religion: reformed church Based on these bullet points, write a short biography describing the life of don knabe .
A:
donald r. knabe -lrb- born october 15 , 1943 , in illinois -rrb- is a member of the los angeles county board of supervisors , serving the fourth district .the long east -- west district runs from marina del rey and lax through the south bay , los angeles harbor region , and the gateway cities , to the southwestern san gabriel valley .