Which of these people are you looking for? In 1878 Cimarron was the main center.
There is an S.V. Ludlum in Cimarron on the 1878 Assessment.
Henry Ludlum, Physician, was listed on the 1879 Cimarron Tax Valuation, and on the 1880 Census with his wife, Emma.
Ernest m Mable Carrington, born in Elizabethton in 1888, Children: Kenneth and Ernestine, who m Richard Lentfer. They are listed on the 1885 census, in Raton, etc.