Is anyone working on the following Bertie family --or have any info on them?

William Bertie b 1845 in Scotland d Jan 15,1897 in Byers, Araphahoe, Colorado

Married Ellen (maiden name ?) b: Aug 1846 in Scotland d ?

William and Ellen (sometimes shown as Helen) were married in Scotland and immigrated about 1880 with their oldest son James. They had 4 other children, all born in Colorado

Children
(1) James Bertie b: Sep 1879 in Scotland

(2) Mary Ann Bertie b Dec 1880 or 1881 in Byers, Arapahoe Co, CO
married Oliver Henry SMITH
Oliver and Mary Ann in Bennett, Adams Co, CO by 1920
(3) Alice Bertie b: Feb 1883 Arapahoe Co, CO

(4) Lillie Bertie b: Nov 1885 Arapahoe Co, CO

(5) William Bertie b: Apr 1887 Arapahoe Co, CO

Would love to share info, Benita