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Andrew Daniel Mortensen, our father, grandfather, and great-grandfather, was the first child born in America to Anders and Ane Catherine (Hansen) Mortensen. Andrew's father Anders Mortensen traveled immigrated to America from Denmark in 1873, following in the path of his mother, Mette, and older brother Knud. Andrew's first wife, Christina Lauritz Gregersen, died in 1918 of influenza, leaving four surviving children. A.D., as he was called, then married Johanna Sorensen in 1921. She is the mother of three additional children.

Free Family History Book

Pulling from many sources, Grant Carl Mortensen compiled an excellent book on the Andrew Daniel Mortensen family history, and has made it available to family members for free. Grant's comprehensive book uses details from family stories and records, biographies, journals, and historical documents to piece together the lives of our ancestors and relatives.

Photo Gallery

Historical and family photos


Certificates, letters, and other family history gems

Family Stories

Inspiring stories of our Mortensen ancestors


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This website contains just a sample of the Andrew Daniel Mortensen family history information currently available. Ideally all Mortensen family history details will eventually be included on


The goal of this web site is to help Mortensen relatives to become familiar with our rich heritage and the faith of our ancestors, then to inspire relatives to contribute to our collective family history knowledge by adding family history information to FamilySearch, including photos, stories, source documentation, etc. Sign up for a free account today!