Names for Nicknames

So the first poster post a nickname and then the following poster for provide a full name for that nickname. Then they would add a new nickname for the next poster.
For example:

Poster 1#
[name_u]Alex[/name_u]

Poster 2#
[name_m]Alexander[/name_m]

[name_f]Maddy[/name_f]

Etc, etc.

First nickname: [name_f]Lily[/name_f]

[name_f]Lillian[/name_f]

[name_f]Libby[/name_f]?

[name_f]Liberty[/name_f]

[name_u]Shay[/name_u]

[name_f]Shaela[/name_f]

[name_f]Ella[/name_f]?

[name_u]Ellison[/name_u]

[name_f]Nena[/name_f]?

Antonena

[name_f]Sadie[/name_f]?

[name_f]Sadira[/name_f].

[name_m]Tig[/name_m]?

[name_m]Hartigan[/name_m]

[name_u]Jem[/name_u]?

[name_f]Jemima[/name_f]

[name_f]Lucy[/name_f]?

[name_f]Lucia[/name_f].

[name_f]Meg[/name_f]?

[name_f]Margaret[/name_f]

[name_f]Della[/name_f]

[name_f]Delia[/name_f]

[name_u]Billie[/name_u]

[name_f]Wilhelmina[/name_f]

[name_u]Bobbie[/name_u]

[name_f]Roberta[/name_f]

[name_u]Lou[/name_u]

[name_f]Louisa[/name_f]

[name_u]Si[/name_u]?

[name_f]Sigrid[/name_f]

[name_f]Cat[/name_f]?

[name_f]Catalina[/name_f]

[name_m]Cas[/name_m]?

[name_f]Cassandra[/name_f]

[name_u]Jan[/name_u]?

[name_f]Janet[/name_f]

[name_f]Evy[/name_f]?

[name_u]Evelyn[/name_u]

[name_f]Rosie[/name_f]?