[2] In 1903 Newhall was elected as a Democrat to serve in the Massachusetts House of Representatives of 1904.

[2] In the 1903 election Newhall received 1,371 votes coming in second behind Republican candidate John W. Blaney who received 1,434 votes, and just ahead of fellow Democrat Michael F. Phelan who received 1,307 votes.

[2] The district Newhall ran in sent two representatives to the Massachusetts House, so although Newhall came in second in the vote total he was elected.

[2] While in the House of 1904 Newhall served on the Committee on Prisons.

[3] Newhall placed third in the balloting behind Republican Arthur W. Barker and fellow Democratic party candidate Michael F.