Look, I understand what you mean, but those kind of categories wouldn't work on this wiki, considering there are multiple pages for each character that appear in other series' in the franchise, instead of one page for each character and have all the info on there. For example, there is a page for Morgan Jones as a comic character, who (SPOILERS from here on out) died by a big hoard of zombies that came into Alexandria, while the character in the TV Series is still alive and is helping fight the war against the Saviors (Which there is also a page for), and the info from the comic series would go on the comic characters page, where the info for the TV character would go on said page. And because of that, it would be kinda pointless making those categories.
Good idea to pass around. However on top of everything everyone else has said anyone who bothers to check out a walking dead wiki site would probably already know that Lilly stopped being in the comic way back in issue 48 and is nowhere near the Alexandria area. So they would already know that Lilly isn't a part of Rick's group.