Weed or keep?

I'm pretty good at identifying annual vegetable plants. I don't know their family names (although I am learning) but I can tell you what's a tomato, what's a squash, and what's an onion. And compared to annual vegetable plants, I can pretty easily identify what a weed is; weeds are what's left after I identified the vegetables!

While weeding the orchard this evening, I realized there are some plants I'm having a hard time identifying. The majority of the orchard groundcover is white Dutch Clover, a low growing groundcover. However, when I planted the clover, I found some packets of flower seeds and mixed them in with the clover; and I don't remember what I sowed nor what they're supposed to look like. Also coming up in the orchard are lambs quarters and pig weed, both I can identify.

If you can identify any of these, use the corresponding numbers and let me know what's growing.

#1, looks a little like a cross between a marigold and a carrot. Any guesses? Weed or keep?

#2, very upright, tubular stem, pretty white flowers.

#3, I'm pretty sure Judy Skog gave me this one, but I don't recall what it is,

#4, flower or foe?

  

#5, maybe a flower, though I honestly have no reason other than to think that some of the flowers seeds must have germinated.