Here are a few pictures of both girls at about the same age for a little comparison. Lilah does have some similarities to Jo, but they definitely have their own looks!
Lilah, 9/9/10:

Jolynn, 11/4/08:

Lilah Anne, 3 weeks 4 days:
Jolynn Jean, 2 Weeks 6 Days:

Lilah:

Jolynn:

Jolynn and Lilah, 9/9/10: