Complex sentence: After leaving Tucson, the Markham troupe arrived in Tombstone on December 1,1879, for a one-week engagement, the same date that Wyatt Earp and his brothers arrived, although there is no record that Josephine and Wyatt Earp met at that time.
Split into simpler sentences: After leaving Tucson, the Markham troupe arrived in Tombstone on December 1,1879, for a one-week engagement. This was the same date that Wyatt Earp and his brothers arrived, although there is no record that Josephine and Wyatt Earp met at that time.