They have also asked that mourners donate to the Mindfulness in Schools Project charity, which brings mindfulness practice into schools, instead of purchasing flowers.
“I believe that our children are struggling with their mental health more than ever. I hope that by supporting organisations such as MiSP, we can help children live healthy fulfilled lives,” said a message from the family on a tribute website set up for Brianna.
“Brianna struggled with her mental health, and I wish that there were better resources to support her when she needed it.”
The funeral is due to take place at 2:45pm on 15 March at St Elphin’s Parish Church in Warrington.
A number of road closures will be in effect ahead of, during and after the service as a large turnout is expected.
There was widespread heartbreak, shock and anger across the UK when news of Brianna’s killing broke in February.
READ MORE: Two teenagers charged with murder of trans girl Brianna Ghey
Since then, a boy and girl, both 15-years-old, have been charged with her murder.
In a statement at the time, Cheshire constabulary said: “The Crown Prosecution Service reminds all concerned that criminal proceedings against both 15-year-olds are now active and that they have the right to a fair trial. It is extremely important that there should be no reporting, commentary or sharing of information online which could in any way prejudice these proceedings.”
Vigils were held across the country to pay tribute to Brianna.
“The loss of her young life has left a massive hole in our family”
Her family described her as a “larger-than-life character who would leave a lasting impression on all that met her”.
“The loss of her young life has left a massive hole in our family, and we know that the teachers and her friends who were involved in her life will feel the same,” they continued.
“We would like to thank everyone for their kind words and support during this extremely difficult time.”
Those who may have information related to the case are advised to contact police via the Cheshire Constabulary website or by calling 101 and quoting IML 1476832. If you wish to remain anonymous, please contact Crimestoppers on 0800 555 111.