Apologies for not posting this prior to today.
I received wonderful help from the staff at the library.
I received a schedule of marriages for Edward Botterell, Jr. - his parents were Edward and Hadesah Botterell. This confirms Sandra's original finding that Esther was Esther Hadassah Brown Botterell (my ancestor, Jane Brown Ellison shares the same cemetery plot as Hadassah Botterell, wife of E. Botterell).
I also received an abbreviated notice of the passing of Edward Botterell, Sr.
Finally, a full obituary for Edward Botterell which includes the following facts:
Edward's death was partly due to a recent fall
He was born in England in 1793
He was in his 88th year when he died
Joined the army at an early age (suppose it was in England?)
Term of service was 24 years
"He came to Toronto with the 15th Regiment of Foot, from which he resigned in 1836 and five years later he connected himself with Provincial Service and continued to fulfill the duties connected therewith until 1876 when he was superannuated."
Leaves two daughters and one son (Edward Botterell, Jr.)
He presented the Protestant Hospital organization (Ottawa, I suppose) "with a valuable lot and houses in Lower Town."
I have been searching the internet for more information about Esther Hadassah Brown Botterell and Jane Brown Ellison, but have not yet found anything about their lives prior to their marriages to Ellison and Botterell.
It appears that they may have lived in Montreal (c1832) and Toronto (1839).