What is a "twice wife"?

 
St Walburga, Plowden, Shropshire
(Click on an image for a larger version)
 
 
The Catholic church at Plowden was built by the Plowden family and many
members of the family are buried there.
 
 
"Twice wife" is not a phrase we have seen before. Does it mean Sally was his second wife following the death of his first wife?
All my new discoveries are published first on the social history group on Facebook so if you want to keep up to date with what is happening you will need to subscribe to the group by clicking on the link below.
https://www.facebook.com/groups/609806292391471/