I located a death record for a Samuel Theodore Grim in Belmont County, Ohio. He passed away on April 14, 1927 of pneumonia. He was buried at Mt. Zion Cemetery in Wheeling, W.V. He was born on Oct 26 1859 in Friendly, W.V. to John and Mansey Hages Grim. He was married to Charrity Currend. He was a labor foreman in the tile works industry. I located this on an L.D.S. website. Hope this is the right one and if it is, it explains why he could not be found in the 1930 census.

Best of luck,
Julie