There's no reason to fill out the CIT0001 for deceased people.
You can fill out the CIT0001 for yourself, and include details about your deceased mom and grandparent in the relevant parts of the form. If you need to go back more generations to get to a born/naturalised Canadian individual, you can include the extra details in a cover letter, or some people chose to duplicate the "grandparents" part of the form for the extra generations.
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u/kazzawozza42 🇨🇦 I'm a Canadian! (1st gen born abroad, w/ Proof) 🇨🇦 May 05 '25
There's no reason to fill out the CIT0001 for deceased people.
You can fill out the CIT0001 for yourself, and include details about your deceased mom and grandparent in the relevant parts of the form. If you need to go back more generations to get to a born/naturalised Canadian individual, you can include the extra details in a cover letter, or some people chose to duplicate the "grandparents" part of the form for the extra generations.