Elias Platte Blackburn
He was most likely born en route to Utah since his company only arrived in the Great Salt Lake Valley near the end of September.
The county he was born in could be Oxfordshire.
Sarah Harris Cook
The County she was born in could be Worcester
Mary Cook Boulton
Most likely died in Monkland, Hertforshire, England. The County she was born in could be Herefordshire.
Most Likely died in Utah Territory. The county he was born in could be Worcestershire.