▁C ocker " ▁and ▁stated ▁that ▁the ▁American ▁C ocker ▁was ▁not ▁a ▁variety ▁of ▁" Span iel ▁( C ocker ) ". ▁There ▁were ▁around ▁ 1 0 0 ▁registr ations ▁between ▁ 1 9 6 6 ▁and ▁ 1 9 6 8 . ▁ ▁In ▁ 1 9 7 0 ▁the ▁bre ed ▁was ▁given ▁a ▁separate ▁register ▁in ▁the ▁Kenn el ▁Club ▁Bre ed ▁Supp lement , ▁as ▁it ▁was ▁previously ▁included ▁in ▁" Any ▁other ▁variety ". ▁Reg istration ▁numbers ▁increased ▁to ▁ 3 0 9 ▁by ▁ 1 9 7 0 ▁following ▁this ▁full ▁recognition . ▁ ▁Notable ▁American ▁C ock ers ▁and ▁popular ity ▁ ▁American ▁C ocker ▁Span iels ▁have ▁won ▁best ▁in ▁show ▁at ▁the ▁West min ster ▁Dog ▁Show ▁on ▁four ▁occasions , ▁with ▁the ▁first ▁win ▁in ▁ 1 9 2 1 ▁by ▁Ch . ▁Mid k iff ▁Sed uct ive . ▁Ch . ▁My ▁O wn ▁Bru cie ▁won ▁the ▁title ▁twice ▁in ▁ 1 9 4 0 ▁and ▁ 1 9 4 1 , ▁and ▁became ▁known ▁as ▁the ▁most ▁photograph ed ▁dog ▁in ▁the ▁world . ▁In ▁addition , ▁the ▁bre ed ▁won ▁the ▁best ▁in ▁show ▁title ▁at ▁Cru ft s ▁in ▁ 2 0 1 7 . ▁ ▁Bru cie ' s ▁win ▁in ▁ 1 9 4 0 ▁coinc ided ▁with ▁the ▁American ▁C ocker ▁Span iel ▁becoming ▁the ▁most ▁popular ▁bre ed ▁of ▁dog ▁in ▁the ▁United ▁States , ▁and ▁they ▁would ▁remain ▁the ▁most ▁popular