Given that there are suggestions that Alois Hitler Jnr. was abusive to his wife, it's terrible to compare JKR to him.
A 1911 British Census document unearthed by genealogy website findmypast in 2014 shed further light on the lives of Irishwoman Bridget Dowling and her husband, Alois Hitler, Jr., the older half-brother of Adolf Hitler.
The Irish link to the Hitler family is one of the more surprising facts from 20th-century Irish history.
Bridget Dowling, a Dublin native, was still in her teens when she met Alois Hitler, Jr. at the Dublin Horse Show in 1909. The story goes that he told Bridget and her father that he was a wealthy hotelier traveling in Ireland, when in fact he was a waiter at Dublin’s Shelbourne Hotel.
The two eloped to London the following year, where they married and had a son, Patrick William Hitler, born in 1911.
Ironically, the house on Upper Stanhope Street was completely destroyed in a German air raid during WWII.
The Hitlers were long gone by then, however. Alois returned to Germany in 1914, without Bridget. Their relationship had soured, with some accounts saying he abandoned his wife and son, while others maintain that Bridget refused to go with him because he had become abusive. www.irishcentral.com/roots/history/census-shows-hitlers-half-brother-married-to-an-irishwoman-lived-in-liverpool