California, San Francisco, World War I Enemy Alien Registration Affidavits - FamilySearch Historical Records

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California, San Francisco, World War I Enemy Alien Registration Affidavits, 1918
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This article describes a collection of records at FamilySearch.org.
San Francisco, California,
United States
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Flag of California
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Location of San Francisco County, California
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Location of California
Record Description
Record Type Alien Registration Affidavits
Collection years 1918
FamilySearch Resources
Related Websites


What is in This Collection?[edit | edit source]

This collection contains a digital browse. Clicking on the "Browse through images" link on the collection page will take you to a list of digital film numbers. The list does not contain any description of the content of the film. To see a description of the content see California, San Francisco, Registration Affidavits of Enemy Alien, 1918 in the FamilySearch Catalog.

Subjects of the German Empire age 14 and older " living within the United States were required to register with the Justice Department during World War I. This collection consists of registration affidavits for California and was acquired from the the San Francisco Public Library. This collection is being published as images become available.

What Can These Records Tell Me?[edit | edit source]

These records may contain

  • Full Name of applicant
  • Date Registration was Filed
  • Address when registered
  • Age
  • Physical description
  • Photo
  • Married or not
  • Been in Military
  • Number of Children (If married)
  • Children's Gender
  • Finger prints

Collection Content[edit | edit source]

Sample Images[edit | edit source]

Information in the Registration Affidavits generally include the following:

How Do I Search This Collection?[edit | edit source]

Before searching this collection, it is helpful to know:

  • The name of your ancestor
  • The date and place registration was filed
  • The name of a spouse

Search the Index[edit | edit source]

Search by name on the Collection Details Page.
  1. Fill in the search boxes in the Search Collection section with the information you know
  2. Click Search to show possible matches


How Do I Analyze the Results?[edit | edit source]

Compare each result from your search with what you know to determine if there is a match. This may require viewing multiple records or images. This may require viewing multiple records or images. Keep track of your research in a research log.

What Do I Do Next?[edit | edit source]

Indexes and transcriptions may not include all the data found in the original records. Look at the actual image of the record, if you can, to verify the information and to find additional information.

I Found the Person I Was Looking For, What Now?[edit | edit source]

  • Use the age or estimated birth date to find vital records such as birth, baptism, marriage, and death
  • Use the information found in the record to find land, probate and immigration records
  • Use the information found in the record to find additional family members in censuses

I Can’t Find the Person I’m Looking For, What Now?[edit | edit source]

  • If your ancestor does not have a common name, collect entries for every person who has the same surname. This list can help you find possible relatives
  • If you cannot locate your ancestor in the locality in which you believe they lived, then try searching records of a nearby town or county
  • Try different spellings of your ancestor’s name
  • Remember that sometimes individuals went by nicknames or alternated between using first and middle names

Record Finder[edit | edit source]

Consult the California Research Tips and Strategies and its Record Finder to search other records

Citing This Collection[edit | edit source]

Citations help you keep track of places you have searched and sources you have found. Identifying your sources helps others find the records you used.

Collection Citation

"California, San Francisco, World War I Enemy Alien Registration Affidavits, 1918." Database with images. FamilySearch. http://FamilySearch.org : 14 June 2016. Citing County Clerk. San Francisco Public Library, History and Archives.

Record Citation:
When looking at a record, the citation can be viewed by clicking the drop-down arrow next to Document Information.
Image Citation:
When looking at an image, the citation is found on the Information tab at the bottom left of the screen.

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