Wow... talk about strange timing that i'm replying to you almost 10 years to the day you posted this message!
My name is Lee-Ann Duff, and if I'm correct, I'm a descendant of Aaron Henry Denmark of Ottawa.
Ancestry.ca has free access to Canadian wedding records until May 1, 2011 which is how I tracked my lineage to the Ottawa Area.
I believe that my grgrgrandfather was Joseph Albert Denmark, Aaron Henry's son, who died in Walford Ontario (District of Algoma) in 1915.
I have found a wedding register with the name Joseph Denmark whose father is listed as "Henry Denmark" and who was born in Ottawa.
The only Henry Denmark I have found in Ottawa, who is also listed as being married to Mary Ann Whitehead, a name in our family bible, was "Aaron Henry Denmark" so I am making the assumption that 'they' are the same person.
According to a family story passed down through the generations, Joseph's family was not happy that he was seeing a Catholic girl and made him choose between his inheritance and the girl.
Joseph, born circa 1859, married Elizabeth Hacker, a Catholic girl, in Spanish, Ontario, Canada on October 22, 1892.
One of their children was my grgrandmother, Mary Ann Denmark Whalen, who was born in Walford, Ontario June 19, 1898 and died in Elliot Lake, Ontario December 25, 1986.
Mary Ann's daughter Edith - one of 10 children who survived to adulthood - is my grandmother.
I hope this answers some of your questions. If I have made an error in connecting our two families, please let me know. If I'm correct, I would also like to exchange information with you and fill in some gaps in the Denmark Family Tree.
Hoping to hear from you.