Blackstone st and Arlington st.

[Blue70]

Old Liverpool maps:-


Arlington Street

http://www.liverpoolhistoryprojects.co.uk/liverpoolaz/gi79.htm


Blackstone Street

http://www.liverpoolhistoryprojects.co.uk/liverpoolaz/gi1012.htm



C

[Gibel]

A huge number of people were not entitled to vote until post 1st World War. All men could vote in 1918 and women over 30 or those who held property.

The above may be the reason you cannot find the people you were looking for. Most working class men could not vote before 1918.