sentences:  The second historic/tragic event that St. Mary's Cathedral attempted to mitigate was the 1968 assassination of Martin Luther King, Jr. two miles from the church.The day after King's death, Memphis clergy from many churches and synagogues met at the cathedral.In an impromptu move, Dean William Dimmick (later Bishop of Northern Michigan and co-author of certain rites in the 1979 Book of Common Prayer) took up the cathedral's processional cross and led the assembled ministers down Poplar Avenue to City Hall to petition Mayor Henry C. Loeb to end the labor standoff that King was in town to help negotiate.