jooolzzz, first let me say that I am sorry for your loss. Second, it would be helpful to know whether you held a memorial or funeral service for your sister ten months ago, and whether you are planning a service for the day you bury her ashes.
If you are planning a burial service at which friends will be welcome, yes, you may let the public know in the form of a notice in the paper. If it will be a private service, or no service will be held, you are under no obligation to provide a notice, especially if an obituary was previously published.
I hope this helps you. If you have more questions, please feel free to ask. Thank you for joining the conversation at Funeralwise.com.
My sister passed away 10 months ago, we are burying her ashes in 4 weeks & not sure how to let friends etc know, is it a memorial advert in the local paper?