The family of Cecelia Mercedes Johnston is found in the 1920 Federal Census of Coraopolis, Allegheny County, Pennsylvania. Leonard Johnston, a Pattern Maker, and his wife, Mary, were the parents of Bernard, 8, Leonard, 6, Helen, almost 3, and Mercedes, 2 months.

In the 1930 census of Beaver Falls, Beaver County, Pennsylvania, C. Mercedes Johnston, 10, lived with her parents, H. Leonard Johnston, 39, and E. Mary Johnston. Mercedes had an older brother, V. Bernard Johnston, 18, and a sister, M. Hellen Johnston, 13.

At the time of the 1940 census, Mercedes Johnston, 20, born in Pennsylvania, was a student nurse at St. Francis Hospital. The record indicates that she had resided in Beaver Falls, Beaver County, Pennsylvania in 1935.

The father died in 1957. His death record indicates that his wife was Mary Ellen Ruane. Helen Rieser (daughter) gave the death information.

Cecelia M. Johnston, 24, born in Coraopolis, Pennsylvania, married Joseph Goetz, a soldier, age 26, on January 1, 1944 at Nottoway County, Virginia. He was born in Millvale, Pennsylvania.

Cecelia M. Goetz died on March 8, 1986.