Researching Dennis Nilsen
Delve into the history of Dennis Nilsen using the links below. We hope you find this information useful!
![]() | Did you know that in the 1881 UK census there were 39 people with the Nilsen surname? In that year Nilsen was ranked number 3540 for popularity in the UK. |

The name Dennis means "Of Dionysius" and is of Greek origin.
Records of Dennis Nilsen on Ancestry
Ancestry is a major source of information if you are filling out the detail of Dennis Nilsen in your family tree. A vast range of data is available to search ranging from census records, births, deaths and marriages, military records and immigration records to name but a few. Free trials are normally available and are a good way to fill out a lot of your tree quickly.
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Ancestry.com Global records search results for Dennis Nilsen. |
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Ancestry.com US records search results for Dennis Nilsen. |
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Ancestry.co.uk UK records search results for Dennis Nilsen. |
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Ancestry.ca Canadian records search results for Dennis Nilsen. |
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Ancestry.com.au Australian records search results for Dennis Nilsen. |
DNA
Sometimes you can run into a brick wall in your tree and you just don't have enough evidence to make that next step back in time. A DNA test can sometimes help to make a link to a particular family name if you find you share common DNA with people who have the same or similar surnames as each other. If you are lucky then you may get a match within a few generations and discover some Nilsen ancestors. Additionally, the modern DNA test can give you a breakdown of your ethnic mix - you may be surprised at the results!
Have you reached a brick wall in your Nilsen Tree?
Birth, Death and Marriage Records for Dennis Nilsen and the Nilsen Family Tree
Birth, Death and Marriage records are often the best method of making the links to the Nilsen Genealogy that will form part of your family tree. Although records vary from country to country, they are normally the most formal record of a person's relations. From the sources below you will be able to find a birth record and, from that, a birth certificate can be ordered which lists the names of the mother and father, taking you back another generation in your tree. A marriage certificate may also list the names of the respective fathers of the bride and groom which may then help you to find them earlier in life on a census record enabling you to fill out more detail in the Nilsen family tree.
Look at Parish Records for Dennis Nilsen at Find My Past.
Investigate for the UK registered births, marriages and deaths of Dennis Nilsen using the FreeBMD database.
Look at Genealogy Bank for Dennis Nilsen records.
Investigate MyHeritage for Dennis Nilsen information.
Explore the LDS Database for records about Dennis Nilsen.
Research the Nilsen surname using fold3 Military Archives and view images of original Nilsen Military records.
![]() | Did you know that there are currently 201 people with the Nilsen surname in the UK? Nilsen is now ranked number 3853 for popularity in the UK. |
Nilsen Genealogy Databases
Another way to build your tree quickly is to use the research other people have already done. This can help to confirm or refute your own deductions - however, be wary of taking this data at face value as other researchers may not have been as meticulous as you. Always try to back up deductions with some definitive sources rather than relying too heavily on others.
Investigate the WikiTree database for user contributed records for Dennis Nilsen.
Study MyTrees for information on the Nilsen family and people looking to contact living Nilsen relations.
Look at One Great Family for Nilsen records submitted by people who are already researching the Nilsen Family Tree.
Find Dennis Nilsen from Ireland on findmypast.ie
Nilsen Forums
There are a number of forums which are dedicated to rearching particular surnames. These can be good places to share your findings and also to tap into the knowledge that others may already have. These can sometimes be a good way of finding living relations as these tend not to show up on the other sources of information for privacy reasons.
Research the Nilsen surname using Genealogy.com forums .
![]() | Did you know that there are currently 3038 people with the Nilsen surname in the USA? Nilsen is ranked number 156 for popularity in the USA. |
Miscellaneous Nilsen Databases
Check out the Ellis Island Database for information on Dennis Nilsen. This database contains over 25 million immigration records detailing passengers arriving in the United States of America.
Some Famous People called Dennis Nilsen
Dennis Nilsen
Dennis Andrew Nilsen (23 November 1945 – 12 May 2018) was a Scottish serial killer and necrophile who murdered at least twelve young men and boys between 1978 and 1983 in London. Convicted at the Old Bailey of six counts of murder and two of attempted murder, Nilsen was sentenced to life imprisonment on 4 November 1983, with a recommendation that he serve a minimum of twenty-five years. This recommendation was later changed to a whole life tariff in December 1994. In his later years, Nilsen was imprisoned at Full Sutton maximum security prison.
All of Nilsen's murders were committed at the two North London addresses where he lived between 1978 and 1983. His victims would be lured to these addresses through deception and killed by strangulation, sometimes accompanied by drowning. Following each murder, Nilsen would observe a ritual in which he bathed and dressed the victim's body, which he retained for extended periods of time, before dissecting and disposing of the remains by burning them in a bonfire or flushing them down a toilet.
Nilsen became known as the Muswell Hill Murderer, as he committed his later murders in the Muswell Hill district of North London. He died at York Hospital on 12 May 2018 of a pulmonary embolism and a retroperitoneal haemorrhage, which occurred following surgery to repair an abdominal aortic aneurysm.
Source: Dennis Nilsen, Wikipedia, The Free EncyclopediaOther names that sound a bit like Nilsen
Family names can get corrupted over time, particularly where literacy was not as good. The following list contains some names that have similar sounds so you may want to also look at one or two of the more likely possibilites.
Knelson Knowlson Nehlsen Neilsen Neilson Neligan Nelissen Nelkin Nelligan Nelsen Nelson Nielsen Nielson Nielssen Nillson Nilson Nilsson Nulsen





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