I can confirm the information from Bob! Yes, Köln-Poll is meant. I know this place personally very well. I had searched there for different interested ones. I would Peter Lorenz' brothers and sisters mention to you yet:
Gertrud, * 23. 1. 1904;
Wilhelm; * 13. 1. 1905;
Catharina Margaretha; * 2. 2. 1906;
Anna Maria Katharina; * 31. 7. 1910;
Theodor; * 17. 3. 1913 ( Theodor has died in the war in Stalingrad).
Anna Maria Elisabeth; * 5. 2. 1915
Emil Erich; * 20.5.1917
All children were born in Köln-Poll. They were baptized in the church St. Joseph in Poll.
Here the address of the church:
Kirche St. Joseph; Poller Hauptstr. 26; 51105 Köln