my guess is the best ones to include are those that have eligibility requirements (i.e. everyone is not automatically considered), you submit some application for it, the application is evaluated in a competitive process according to some objective criteria. This shows that your work has been recognized by others in a competitive method similar to SSHRC.
But I also wouldn't leave white space if you could help it, and use that space to highlight some aspect of your work that bolsters your current proposal (i.e. a travel grant for a particular conference, a prize for a particular project, a fellowship from a particular organization or one that has a particular name). All these things can feed into the theme of your proposal -- that you are the person to do this particular project very well, since you are supported from what you've learned in your previous experience.