Summary
Registrant Phillip Van Der Zwiep is looking for his biological birth sibling. The adoptee was born in California in 1939 on May 1st. He was born in San Francisco in San Francisco County to 22 year old birthmother Marjorie Louise Van Der Zwiep (maiden name McDonough).Online Genealogy and Family Research Resources
VAN DER ZWIEP results at Ancestry.com - more than 1.5 billion recordsMarjorie Van Der Zwiep records at Ancestry.com
Marjorie McDonough records at Ancestry.com
Phillip Van Der Zwiep, Sr. records at Ancestry.com
California Adoption Record: # 78329
Biological Brother looking for Birth Sibling
Phillip Van Der Zwiep
Adoptee's Info
Birth Name: Unknown
Adoptive Name:
Date of Birth: May 1, 1939 (now 86 years old)
Gender: Male
Birth Location: San Francisco city, San Francisco county, California USA
Birthmother's Info
Name: Marjorie Louise Van Der Zwiep (McDonough)
Born: Nov 19, 1914
Age at Adoptee's Birth: 22
Religion: Unknown
Birthfather's Info
Name: Phillip James Van Der Zwiep, Sr.
Born: Dec 1908
Age at Adoptee's Birth: 27
Religion: Unknown
Born at Hospital: Saint Francis Hospital
Birth Certificate:
Adoption Agency:
Additional Info
A recent DNA test with 23me found that I supposedly have an identical twin that I was not aware of.
Registered: July 30, 2017
Biological Brother looking for Birth Sibling
Phillip Van Der Zwiep
Adoptee's Info
Birth Name: Unknown
Adoptive Name:
Date of Birth: May 1, 1939 (now 86 years old)
Gender: Male
Birth Location: San Francisco city, San Francisco county, California USA
Birthmother's Info
Name: Marjorie Louise Van Der Zwiep (McDonough)
Born: Nov 19, 1914
Age at Adoptee's Birth: 22
Religion: Unknown
Birthfather's Info
Name: Phillip James Van Der Zwiep, Sr.
Born: Dec 1908
Age at Adoptee's Birth: 27
Religion: Unknown
Born at Hospital: Saint Francis Hospital
Birth Certificate:
Adoption Agency:
Additional Info
A recent DNA test with 23me found that I supposedly have an identical twin that I was not aware of.
Registered: July 30, 2017
Recent adoption records added to the online California biological family reunion registry
- Female adoptee born on Oct 22, 1970 in Camarillo, California
Adoption record added Sunday, Dec 14, 2025 at 4:34pm - Biological Sister looking for Female adoptee born on Oct 25, 1954 in California
Adoption record added Sunday, Dec 7, 2025 at 11:08am - Female adoptee born on Apr 17, 1967 in San Diego, California
Adoption record added Saturday, Dec 6, 2025 at 8:26pm - Other Birth Family looking for Any Birth Family of Female adoptee born on Dec 31, 1966 in Sacramento, California
Adoption record added Monday, Nov 17, 2025 at 6:20am - Birth Father looking for Male adoptee born on Aug 17, 2005 in Redwood City, California
Adoption record added Monday, Nov 10, 2025 at 9:17am - Other Birth Family looking for Female adoptee born on Feb 3, 1957 in San Francisco, California
Adoption record added Wednesday, Oct 1, 2025 at 4:20pm - Other Birth Family looking for Birth Sibling of Female adoptee born on May 19, 1956 in San Francisco, California
Adoption record added Wednesday, Oct 1, 2025 at 4:06pm