 Other notable persons with Oldham connections include the composer Sir William Walton , former British Prime Minister Sir Winston Churchill , and Louise Brown , the world 's first baby to be conceived by in vitro fertilisation . 
 Other notable persons with Oldham connections include the composer Sir William Walton , former British Prime Minister Sir Winston Churchill , and Louise Brown , the world <a href='null_genetive' title='1'><mark>'s</mark></a>first baby to be conceived by in vitro fertilisation . 
Other notable persons wid Oldham connections include the composer Sir William Walton , former British Prime Minister Sir Winston Churchill , and Louise Brown , da world  first baby to b conceived by in vitro fertilisation .