One out of every 5 persons in April, 1948, was living in a differnt house from one he lived in a year earlier, according to the results of a sample survey announced today by J.C. Capt, Director, Bureau of the Census, Department of Commerce. of the 29 million persons who had moved to a different house, 19 million had moved wtihin a county and 9 million had changed their county of residence. A comparison of the mobility of the various arital status groups reveals that divorced persons were more mobile than single, married, or widowed, with 29 percent not living in the same house in April, 1948, as in April, 1947.