I read Bork rather than Bark, the surname of his father is more clearly written and supports this reading. The third letter of her surname is ambiguous and could be an "i" (see Source 3,) an "s" (ancestry.com transcription but less likely) or a "c" which is consistent with other sources
Name: Càrl Bark [I read Bork]
Note: W = widower
Birth Place: Germany
Age: 34
Estimated birth year: abt 1863
Father Name: Càrl L Bark
Mother Name: Ernestine B Potter Bark [I read Ernestine Bork G? (for geb?) Potter]
Spouse Name: Bertha Taskmann [I read Tackmann]
Note: Sp = Spinster
Spouse's Age: 33
Spouse Birth Year: abt 1864
Spouse Birth Place: Germany
Spouse Father Name: Càrl Taskmann [I read Tackmann]
Spouse Mother Name: Johanna B Krausar Taskmann [I read Johanna Tackmann G? (for geb?) Krause]
Marriage Date: 3 May 1897
Marriage County or District: Renfrew
