A devoted grandmother, SLOTXO a beloved teacher, the sister of Paraguay's first lady and a mother whose now distraught daughter couldn't take her call.
All are among scores unaccounted for in the Miami building collapse.
Dozens are from the large Jewish community, a similar number named by Latin American consulates.
Anxious posts go up on social media as fearful relatives and friends struggle for information, but also refuse to give up hope.
The 12-storey residential building partially collapsed early on Thursday morning. So far only five people have been confirmed dead, and four of them have been named.
This is what we know about some of the missing:
Mother of survivor is first victim to be named
The first victim to be named was Stacie Fang, 54, whose 15-year-old son Jonah Handler was rescued from the rubble hours after the collapse.
According to US media, Ms Fang was pronounced dead shortly after arriving at Aventura Hospital and Medical Center on Thursday. Her funeral is due to take place on Sunday in New Jersey, NBC6 reported.
In a statement, her family expressed thanks for the outpouring of sympathy and support they had received.
An elderly couple who didn't want to die apart
Antonio Lozano, 83, and his wife Gladys, 79, lived on the ninth floor. They were confirmed dead after officials took a DNA sample from their son, Sergio Lozano, and matched it to their bodies.
Sergio Lozano told local media that his parents had known each other for more than 60 years, and would have celebrated their 59th anniversary on 21 July.
They used to joke that neither wanted the other one to die first, because they didn't want to be apart from each other.