Lipa was born on July 25 1865, son of Chaim and Ester (Binenstok) Baumstein (Baumsztajn).

His siblings were : Sura Rojza, Laja,  Abram (Abraham ), Chana.

Above picture from Argentina Ostrowiec Yizkor book of 1948 , in section about Lipa Baumstein.

He married Sara Lea (also a Binenstok) and had following children:

Chaim Lejb
Sura Ruchla
Majer (died at age 3 in 1906)
Marya
Serka Ruchla
Ojzer
Abram Ber

(It is believed there was another son Jakub Josek that immigrated in 1945 to Brazil)

In 1930, Lipa passed away , before the Holocaust , when most of his family were later murdered.

Pg 27 English Section of Ostrowiec Yizkor Book 1971:

Amongst the places of the region, the village Ostrowka (or Ostrowek) is noteworthy because amongst its Christians there resided the Jew Lipa Baumstein (called Ostrowker) who was famous for his generosity towards the Jewish communities of the region. In the beginning of the First World War, in 1914, when the Russians retreated from Ostrowiec to the Vistula River, Lipa bought of them,for lots of money, the various Torah books and other holy Scriptures which they captured in the city. Before his death, he wrote in his testament that he bequeathed 40,000 zloty for completion of the wall around the cemetery of Ostrowiec, and 20,000 zloty for a hostel for the Yeshiva boys of Ostrowiec.