Thanks for your responses it is very helpful to get others views
My eldest brother used to do it for my SIL on or near her anniversary, he also lost their daughter to the same cancer only 23 months later (39 with girls of 18 months and 5). His sisters brother also died from the same cancer 3 years later. So it has been a set of circumstances you would not wish on anyone.
We were also particularly close as families, my nephew said recently that our home was his universe when he was growing up.
I did feel that I and my family should attend but I did not like it at all. So I told my nephew how I felt and the invites have stopped. Not sure if it just to me, but she was like my sister (three brothers!!!!) and rarely does a day go by when I do not think of her, but they are happy memories of the good fun n laughter we shared.
We lost the elder of our identical twin girls, so I am not a stranger to loss, and both sets of parents are gone now. I do still howl on the anniversary of her death, but do it alone. I obviously know that my hubby n children remember her on that the day, but we do not discuss it only give one another a real or virtual hug. With my parents I have so many happy memories to cherish, and my youngest brother n I talk of doing something next year on what would have been Dads 100th birthday, and Mums 99th.
My 2nd eldest brother died nearly a year ago of IPF at 65, it hit me like a sledgehammer, always 4 of us.....
So I am wondering how to support my SIL next week, she is 58, with one son, and they had --as everyone does ---planned a wonderful retirement together. So I suppose that was why I posted this. Is the first anniversary different? We see a lot of one another so I do not want to upset her by not offering to go out for lunch or just spend time with them on the day. I was the last person to see him in hospital before he died suddenly 5 hours later.