Richard Mansfield is described as an American actor, from Boston, when in fact was born in Germany and educated in England where he started his acting career. Although he did spend the end of his life and career in America.
When Elizabeth Stride is dragged into the yard in Berner Street the name on the yard gates reads "Duffields" instead of "Dutfields" .
Throughout they constantly refer to Prince Albert Victor as being a suspect, This was incorrect as it was not until 1970 that the rumor really began although it may have been suggested six years before that but it wasn't even imagined in 1888.
When the Prime Minister hears of the gossip about any involvement of Prince Albert Victor he is worried then later on we are told that the Prince was with the Queen in Scotland, the one person in the government who would know where the Queen was at any given time would be the Prime Minister, therefore he would have quashed the rumor from the start.
The unfounded rumor was first mentioned in 1962 by Philippe Jullian in a biography of Edward VII possibly indirectly from Thomas E. A. Stowell which the later claimed in the 70s to be true since then in spite of evidence to the contrary the rumor is still believed, but at the time of the murders there was no rumor.