I believe the Creecy Allen you mention might be the Lucracy in Marion Allen's 1900 Fulton Co. AR census. I will paste in some other census that might be helpful.
1900 Fulton Co. AR, Benton Twp, ED 22 Sh 10a, June 12 #144/144 Sanders, George W.headb. Jan 187822 single b. AR/TN/TNFarming #146/146 Allen, Marionheadb. Apr 185941 mar 18yrsb. MO/MO/MOFarm Laborer Eliza J.wifeMay 186733 mar 18yrs 4 child 4 livIL/KY/TN LucracydauJun 188514MO/MO/ILIn School Mary M.dauMay 18919MO/MO/ILIn School SusiedauMar 18964MO/MO/IL FranklinsonMar 18982MO/MO/IL [Obviously the Lucracy is the one known as Creecy. Whether her name was Lucretia or? is unknown]
1910 Fulton Co. AR, Benton Twp, ED 15 Sh 11a, April 28 West Plains Road #192/196 Sanders, George W.head31 mar1 10yrsb. AR/KY/OHFarmer/General Farm ????wife27 mar1 10yrs 4 child 4 livAR/AR/AR Harveyson7AR/AR/AR ? Haroldson6AR/AR/AR Pearldau3AR/AR/AR George D.son2AR/AR/AR [I could not read the wife's name but did appear to resemble Precia or Lucetia]
1910 Lawrence Co. AR, Boas Twp, ED 78 Sh 3a, 27 & 28 Apr #48/48 Allen, F. Marionhead48 mar1 27yrsb. AR/IL/ILLaborer on Farm Rents/House Elizawife46 mar1 27yrs 8 child 4 livingIL/IL/IL Susandau16 singleMO/AR/ILAttends School Frankson11MO/AR/ILAttends School Legg,Genes-i-l 22 mar1 6/12MO/MO/MOLaborer on Farm Maudiedau17 mar1 6/12MO/AR/IL [Marion and Eliza are marked as cannot read or write]
1930 Fulton Co. AR, Benton Twp, Ed 4 Sh 5b, Apr 18 #101/105 Sanders, Harveyheadrents no radio25 mar@19 b. AR/US/USFarmer Ethelwife24 mar@17AR/AR/AR Claudson6AR/AR/AR Ralphson4AR/AR/AR Royson2AR/AR/AR Eugeneson4/12AR/AR/AR