Complex sentence: After his separation, McKinney continued to have struggles with alcohol abuse, but by 1912 had his addiction under control and he traveled with Webster, Ethelyn McKinney and Lena Weinstein to Ireland in the summer of 1912.
Split into simpler sentences: After his separation, McKinney continued to have struggles with alcohol abuse, but by 1912 had his addiction under control. He and Webster traveled with Ethelyn McKinney and Lena Weinstein to Ireland in the summer of 1912.