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Finally, a name! Ivanka Trump and husband Jared Kushner welcomed their second child, a baby boy, on Oct. 14, but waited until the following day to reveal his name.

"With love we welcome our son, Joseph Frederick Kushner," she tweeted on Oct. 15, along with a picture of the bundle of joy's birth announcement. "Visit Tumblr to see some pictures!"

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Baby Joseph, born at 9:54 p.m., was named after his paternal great-grandfathers, whom the new mom describes as "master builders of their generation and inspiring patriarchs of their families."

"Jared's grandfather, Joseph, was a rock," the new mom explained on her Tumblr. "His indomitable spirit, his sense of family, and his work ethic are the values we hope to hand down to our son. My grandfather, Frederick, was a builder not just of tens of thousands of homes throughout this city, but of a tight-knit family that honors to this day the traditions he established."

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She continued, "Both men set the standards that have been passed down through the generations and which we hope to impart upon Joseph and Arabella. They created a legacy for our family that inspires our careers as well as our love and respect for one another. We are honored to name our son after these two distinguished men. We feel so blessed with the newest member of the family!"

Trump, 31, and husband Jared Kushner, who wed in 2009, are already parents to daughter Arabella, 2. She announced the birth of their son on Twitter, writing, "We just welcomed a beautiful & healthy son into the world. Jared, Arabella and I couldn't be happier!"

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Her father and proud grandfather, Donald Trump, also tweeted, "My beautiful daughter Ivanka just had a healthy baby boy. Jared and Ivanka are very proud!" The Apprentice boss, 67, later added, "Thanks to all for the wonderful congratulations sent to me on the birth of Ivanka's little boy -- so nice!"

On Tuesday, Trump shared an adorable photo of daughter Arabella waiting to greet her baby brother at home. "Arabella is at home with her grandmother practicing her swaddle before her little brother comes home!" she captioned the photo of her little girl holding a baby doll.


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