Hailee Steinfeld turned a private milestone into a public update on June 19, revealing that she and Josh Allen named their daughter Harper Haize Allen. The announcement came two months after the couple first said their baby girl had arrived in April, and it adds the clearest new detail yet to a story Steinfeld has been unfolding in pieces.
In a letter posted to her Beau Society Substack, Steinfeld opened with, “Dearest Harper, I'm in awe of you,” then wrote, “You've been here for only a short while now, and somehow it feels as though you've always been ours.” She also said, “Even though I know I am meant to guide you through this life, Harper Haize Allen, the truth is that already, you have taught me far more than I could ever teach you.”
Beau Society on June 19
The June 19 post matters because it does more than name the baby. It puts a full identity to the infant after Steinfeld and Allen first showed their daughter’s arrival in April, then shared the first photos on May 12. In practical terms, the family has now moved from announcing that a child exists to attaching a name, a rhythm that has kept each update tightly spaced.
Steinfeld’s wording also gives the reveal a personal shape without overexplaining it. “Before I was a mother, I had never understood this feeling of being so wistful and filled with excitement at the same time,” she wrote, then added, “I want your baby hair to stay this soft forever, but I long for the day you might ask me to braid it down your back while we're sitting in the grass.”
April arrival, May 12 photos
May 12 provided the first visual update, with one photo showing Harper’s tiny fist holding Steinfeld's finger while she wore a long-sleeved yellow onesie. Another showed the baby’s feet covered by a black and white spotted onesie with red feet. Steinfeld captioned that post, “A day late but simply obsessed with this.”
Jan. 2 is the earliest sign the family was already thinking publicly about the child’s identity, when Steinfeld teased the nickname “Baby Beau” in a newsletter post that showed a knit sweater under the Christmas tree embroidered with that name. The timeline suggests a deliberate, gradual reveal rather than a single announcement dump, and that keeps each post functioning like a chapter instead of a finished statement.
Josh Allen on fatherhood
April 20 added Allen’s side of the story, when he said becoming a father “definitely changes [your] mindset a little bit,” then called it “such a blessing.” He also said, “I do think this is going to be the best version of myself in all aspects—in my professional career and my personal life,” which gives the name reveal a clear frame: this is a family update, but it also tracks how both parents are presenting the transition.
The remaining question is the one Steinfeld’s letter leaves open: why Harper Haize Allen. She gave readers the name, the tone, and the emotion, but not the explanation behind the middle name or the choice itself. For now, the reveal closes the loop on the baby’s identity while leaving the naming story for a later chapter.
