The brother Warren Alvin (1884) pops up on Border Crossings, also see a marriage for him in Providence. Rhode Island to Susan Ellen Bentley 26 Nov 1907. Will post incase you have'nt got this info.
http://www.rootschat.com/links/0bq3/ Border Crossing Canada to USA:- W Alvin Mcphee. Born about 1885 Canada. Aged 24 years. Occupation:- Machinist. Father :- Israel McPhee. Petitcodiac. New Brunswick. Wife going under the name Nellie. Aged 22 years. Born Rochdale. England. Nellie was 4 ft 11 ins. Ruddy Complexion. Brown Hair and Blue Eyes. Warren ad been in Providence from Oct 25/05 to Jan 24/08. Nellie had been in Providence from July 05 to Jan 24/08. Going to join a cousin Walter T Killam. 68 Wilson Street. Providence. Rhode Island.
Height 5 ft 4 1/4 ins. Ruddy Complexion. Auburn Hair. Brown Eyes.
Port of Arrival: St Albans, Vermont. Arriving February 1909
Border Crossing USA to Canada :- Alvin Mcphee. Born about 1884. New Brunswick. Aged 30 years. Citizen of Canada. Occupation:- Labourer. Going from Massachusetts to Sask.
Arrival Port: Highwater, Quebec - Arrival: 25 Mar 1914