Possible information from 1901 census:
41 11 Dunn Thomas M Head M Aug 15 1831 70
42 11 Dunn Mary F Wife M Dec 25 1831 70
43 11 Dunn Elisabeth F Daughter S Apr 14 1863 38
44 11 Dunn Allice F Daughter S Nov 4 1873 28
45 11 Dunn John M Son S Jul 3 1875 26District: ON ADDINGTON (#43)
Subdistrict: Camden d-9 Page 1
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Images are from National Archives Web Site
Details: Schedule 1 Microfilm T-6457
I am assuming that the birth date listed in the 1881 census is incorrect or that Mary was Selvester's second wife.
Possible Information from 1901 Census:
20 61 Cumming Ernest A. M Head M Apr 1 1866
21 61 Cumming Lepha F Wife M Mar 31 1877
22 61 Carpenter Laura F Domestic S Jun 23 1878Source Information:
1901 Census of Canada
Subdistrict: Elizabethtown, BROCKVILLE, ONTARIO
District Number: 47
Subdistrict Number: f-3
Archives Microfilm: T-6460
Emilia and Joseph had no children of their own, according to "StarkCounty Heritage and Destiny" Compiled and edited for the Stark CountyHistorical Society.