They are all siblings. They are from 'Persephone' crossed with 'Michael's Golden and 'Othello', plus bees at work.
That first year from seed may not show to much, sometimes there might be a standout with promise that first year. I can see why it take 3 years to really see what a seedling is going to do.
And then there are the ones that are not thrifty growers, those can go away after the first year.