By Kelsey Glein
Updated Feb 22, 2016 @ 2:15 pm
Kardashian/Jenner Gift Guide Request
Credit: kourtneykardash/instagram

It's a big day for the Kardashian-Jenner clan—not only did Kim Kardashian West release the first photo of her and Kanye West's son Saint West, but she also paid tribute to her late father Robert Kardashian on what would've been his 72nd birthday.

"Happy Birthday dad! So much has gone on in our lives since you've been gone, and I know you have been my guardian angel seeing it all unfold! I love you and miss you so much!," the star captioned an Instagram snap of her dad (below). So sweet.

But she wasn't the only family member to take to social media with some emotional words. Each of her sisters—Kourtney, Khloé, Kendall, and Kylie—'grammed a photo and message as well. Check them all out below.