He graduated from Carrollton High School in 1883 and engaged in teaching for several years before studying law.

He served as city attorney of Carrollton, Missouri, from 1915 to 1944 and was a delegate to the 1928 Democratic National Convention.

Lozier was elected as a Democrat to the 68th and to the five succeeding Congresses, serving from March 4, 1923, to January 3, 1935).

He resumed the practice of law with offices in Carrollton and Washington, D.C., and also engaged in agricultural pursuits in Carroll County, Missouri.

He died in Kansas City, Missouri, in 1945 and is interred in Oak Hill Cemetery in Carrollton.