The perils of numbers when sub-editing

Take a look at these two extracts from a piece published yesterday about the actress Susannah York pictured above in the 1969 film Battle of Britain:

York was born Susannah Yolande Fletcher in London in January 1939 – although according to York, who was rightly vain about her looks, she always claimed she was born in 1942.

then four paragraphs later

At 18, in 1960, she had fallen in love with Michael Wells.

Some sub-editor at The Sunday Telegraph didn't do his/her job correctly.

One of the main jobs of a sub-editor is to check that it all reads logically and accurately. Numbers should always be checked. The above is just careless.