Dont think its related. Because Robert Lowther was a witness at his daughter Mary's wedding. St Mary's church bury 1852. And divorce was very rare. Unless its bigamy.?
I can tell you that mary Lowther. B. 1833. Wife to Peter Mitchell. B. 1831. Is wed under aher husbands assumed surname. He Was in fact a dale.
Just clarifying, it was Peter Mitchell (Dale) who married under the assumed name of Mitchell, Mary married as Louther
The marriage is on lancsopc Robert is not mentioned as a witness
4 Feb 1852 St Mary the Virgin, Bury, Lancashire, England
Peter Mitchell occ Earthenware Dealer, Bachelor, abode Bury
Mary Souther (sic) Spinster, Bolton Le Moors GRO index has Louther
Groom's Father William Dale, Earthenware Dealer
Bride's Father Robert Souther, (sic) Earthenware Dealer
Witness: Catharine Mitchell; Ra. Crompton
Married by Licence by: Henry Ainslie Curate