First, my definition of late season: here in southeast Nebraska a late season tomato first ripens after August 1. The second part of late season is that it continues to produce into September and even October. Since a lot of tomatoes that do produce later in my season lose flavor and texture, that needs to be taken into account. Over the years having kept a journal of variety production and dates and flavor this is a list of large tomatoes that meet all my requirements.
Don's list is a good one and all are on my list also. These are the others I might suggest:
Heatherington Pink
Joe's Pink Oxheart
Hungarian Heart
Marianna's Peace
Butter and Bull Heart
Reif Red Heart
Aussie
Cuostralee/Coustralee...depending on who spells it
Neve's Azorean Red
Tsar Kolokol
There are a large number of large varieties that produce well into the late season, but for me begin production earlier or lose production or flavor later in the year. Each year is a little different, so these varieties were consistently later tomatoes for me. This is from 15 years of record keeping and just one year on the list didn't get considered. I am sure the list could get to be much longer if I fiddled with the parameters a little.
