Recommended book about George Mueller

I mentioned George Mueller (English spelling of his last name) yesterday. I am actually reading "George Muller (his Prussian name) The Guardian of Bristol's Orphans" by Janet and Geoff Benge. With scarcely enough food or money for his own family, George opened his heart and home. Sustained by God's provision, the Muller house "breakfast Club" of 30 orphans grew to 5 large houses that ultimately over 10,000 children would call home. George Muller trusted God with a depth rarely seen. His faith and generosity set a standard for Christians of all generations. It's an excellent book. from Christian Heroes: Then and Now. (1805-1898)