Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Lawyer Henry K. Oncken, Practice Areas Criminal Defense Attorneys. is located in the city of Tomball, the state of Texas. Attorney legal address 23607 Powder Mill DrTomball, TX, 77377-3921. For more information, please call (281) 290-8881 Your comments* (not for publishing) * — Required information Henry K. Oncken ← View details 23607 Powder Mill DrTomball, TX, 77377-3921, Tomball, Texas (281) 290-8881