What was the population of the city in which S. Lester Ralph was the thirtieth Mayor?
Somerville, Massachusetts: Somerville ( ) is a city located directly to the northwest of Boston, in Middlesex County, Massachusetts, United States. Somerville, Massachusetts:  , the United States Census lists the city with a total population of 75,754 people, making it the most densely populated municipality in New England.
i don't know