I am trying to find an obit for John Mortensen who actually died 23 Apr 1951, in Salt Lake, according to the Utah death index, but he was from Levan, Juab, Ut, and supposedly buried there. His family had lived there for years. His wife was Vivian Thompson, her family had lived in Utah, but not found in this particular county. My question is, where would I look, Juab or Salt Lake? Any help greatly appreciated.