Hello Akashagr,
The definition of family members may be helpful to you. From it, I think we do not need to include the travel history of parents or siblings.
https://www.canada.ca/en/services/immigration-citizenship/helpcentre/glossary.html
Hello. Please have you been able to find a response to this? I am stuck here too. I do not know whether to add the travel history of my sibling or not.
Hello Mr Chang. Thank for the swift response. However, the link you provided does not provide an answer to my question. Kindly look at it again. Thanks.