Jadvyga Baublienė, née Valentinavičiūtė, was born on 18 October 1920. Her granddaughter Rytė Baublytė gives this birth date and maiden name in her family recollections.

During the Second World War, Jadvyga and her husband Sergijus Baublys lived on the outskirts of Kaunas. They were already raising their young son Petriukas, and Jadvyga was expecting their second child. Jadvyga's younger sister Marytė and Sergijus's parents also lived with the family. Their home was small – a two-bedroom apartment.

Despite the cramped conditions and the danger to the entire family, the Baublys home became a refuge for ten-year-old Jewish girl Rachilė Bliumental.

Before the war Rachilė lived in Kaunas. Her mother Esia Sandler had been born in Kaunas, while her father worked as an electrician and owned his own business. Rachilė attended the private Jewish Švabė school. Through a family friend, Valčiūnas, contact was established with the Baublys family and Rachilė was taken into Sergijus's household.

To conceal her Jewish identity, Rachilė was given the identity of Lena Vorobjova. She was to say that she was a Russian girl whose mother was Lithuanian.

As the front approached Kaunas, Jadvyga decided that it was time for the family to leave. She knew where her relatives lived in the countryside, and the family moved with Rachilė to Bružė village near Vilkija. There they were taken in by a miller's family.

It was a large group of people who had to be housed and fed under wartime conditions. From the village Rachilė saw smoke rising in the direction of Kaunas. It later became clear that the Kaunas ghetto was being liquidated. Rachilė's mother Esia was deported to Stutthof, where she died of typhus on 18 January 1945.

After the war the Baublys family raised three sons—Petras, Leonardas and Gediminas. Their middle son Leonardas later graduated from Kaunas Polytechnic, where his father Sergijus had worked for many years.

In 1977 Jadvyga Baublienė and Sergijus were recognized as Righteous Among the Nations. Sergijus had already died, so the family's awards were accepted in Israel by Sergijus's brother Rostislovas (Rostis) Baublys, an architect and bibliophile who lived in Great Britain.

In the memories of her granddaughter Rytė Baublytė, Jadvyga was an excellent homemaker. She spent most of her life caring for the household. According to stories Jadvyga herself told, she had completed a school of home economics in her youth. These skills shaped everyday family life: she cooked delicious meals, preserved food and kept the home well organized.

Their granddaughter Rytė Baublytė recalls that the family told the children about Rachilė’s rescue once they were old enough to understand the story. Her grandparents kept a copy of the book “Ir be ginklo kariai” (“Warriors Without Weapons”). After finding an account of physician Petras Baublys and her own grandparents in it, Rytė asked her grandmother what had happened.

According to Rytė, Rachilė and her father remained in contact with the Baublys family. Until her death, Rachilė would occasionally telephone them and send New Year greetings. During the Soviet period, the family received beautiful wall calendars every year from Switzerland, where Rachilė lived after the war. Rachilė and her father also provided Jadvyga with financial support, although she never asked them for it.

A story that Rytė recorded from her grandmother shows how the Baublys family cared for the children amid wartime shortages. When Rachilė was already living in their home, their son Petras was three years old. One morning, there was only one egg for breakfast. Jadvyga wondered aloud what to do: there were two children, but only one egg. Sergijus suggested dividing it in half and giving a share to each child.