I have new kittens

About 4 weeks ago, my granddaughter text me and asked if "we"can get two kittens.  A friend of hers had a litter of kittens ready for adoption.  There were 2 females and 2 males.  So I said yes and we would take the two females.  They are adorable.  And they fit right in with my other kiddos.  She named them Rumble and Tumble.  Rumble is the fearless one.  Tumble is more timid except with food.  She will growl at Rumble over food.  Tiger, my other cat, does not like them but then she does not like other cats at all.  She does not like dogs either.  She is a muted tortiseshell and has the personality to prove it.  But I still love her.  And I am still missing Duncan.  Every time I fix their food morning and night and only Jock and Honey are there, I feel like I need to go get Duncan.  It is hard.  So hard.