These are the only Waldens in Muskoka on 1891 census

1891 census Parry Sound & McDougall & Parry Island

WALDEN
Harry, 61, b England, building contractor
Harriet, 62, b England
Frank, son, 23, b England
Emma, dau, 22, b England, dressmaker


1901 census Parry Sound

WALDEN
Henry, head, widow, 21 Feb, 1830, 71, England, immigrated 1874
Emma, dau, 24 Nov 1868, 32, b England, dressmaker
Mary A Hersey, lodger, 3 Jun 1827, 73, England


Death: Ancestry.ca

Harriet Walden, died 21 Nov 1897, 69 years, b Hampshire England, cause-paralysis 6 weeks,

Henry Waldon, d 19 Feb 1916, 86years, b England, carpenter, s/o J W Waldon & Ann Reid, died of hemiplegia/ 30 years in bed, informan: J W Farrer, Parry Sound, Registration # 026231.

Mary Ann Hersey, b 3 Jun 1828, died 12 Mar 1911, 83 years,d/o Jno Hersey b England, no mother given b Hampshire England, nurse, cause- senility/gradual for a year, Inf: E Farrer, Parry Sound, # 023701.
Marriage: Ancestry.ca

Emma Walden, 32, d/o Henry Walden & Harriet Hersey, married J. Wilfred Farrer, gardener, 32, s/o Joseph Farrer & Caroline Hamilton, 21 Aug 1901, Parry Sound.


1901 and 1911 census on www.automatedgenealogy.com

If these are your Walden and you want me to look up more information, let me know through this site. I have Ancestry.uk so can look up English census.

Found nothing on Frank.