Wilhelmus van Baast alias Willem, born in Helvoirt on December 17, 1832, son of Cornelis van Baast and Elisabeth Wolfs.

He was married in Vught on June 28, 1867, at the age of 34 to
Wilhelmina van Liempt (aged 27 years), born in Vught on December 21, 1839, daughter of Zegerus van Liempt and Hendrina van Leent.

• 1 : Marinus van Baast, born in Vught circa 1867 (?).
  He was married in Helvoirt on May 23, 1899, at the age of approximately 32 to Adriana Maria Schuurmans (aged approximately 25 years), born in Oisterwijk circa 1874 (?), daughter of Adriaan Schuurmans and Johanna van der Voort.
  

• 2 : Cornelis Johannes van Baast, born in Vught on July 26, 1868.
  He was married in Vught on September 28, 1897, at the age of 29 to Johanna Hoevenaars (aged 32 years), born in Vught on December 11, 1864, daughter of Martinus Hoevenaars and Wilhelmina Eijkemans.
  

• 3 : Joseph Peter van Baast, born in Vught on February 5, 1876, died unmarried there on October 7, 1956, aged 80 years.
  

• 4 : Hendrikus van Baast, born in Vught on January 21, 1878.
  He was married in Vught on November 25, 1907, at the age of 29 to Petronella de Kort (aged 22 years), born in Vught on March 27, 1885, daughter of Petrus de Kort and Anna Catharina Brekelmans.
  

• 5 : Johannes van Baast, born in Vught on January 16, 1880, died there on May 4, 1967, aged 87 years.
  He was married in Vught on February 28, 1905, at the age of 25 to Wilhelmina Cornelia Bekkers (aged 30 years), born in Tilburg on September 8, 1874, died in Vught on December 21, 1957, aged 83 years, daughter of Gerardus Bekkers and Joanna van Tilburg.