Thea / Theo could work to honour Thelma 😊
Thea Orchid for a girl. Theres an Orchid called Maxillaria so maybe u could use Max for a boy. Maybe Bertie for a boy using the "ber" bit of Beryl. Themis is a girls name which also means interpreter of gods will which ties in with the meaning of Thelma which means "will" or "volition"
Girl: Emerald (Type of beryl) Laelia (Species of Orchid) Calanthe (Species of Orchid)(Callie) Trudelia (Species of Orchid) Calypso (Species of Orchid) (Callie) Tamara (Species of Orchid Miltonia (Species of Orchid) (Millie) Vanda ( Species of Orchid) Athene (Type of Owl) (Athena) Zelma Beryn Meryl You could do a first name starting with T and a middle sarting with B like Tullulah Brynn
Boys: Bear Knowles (contains owl) Elman Ryle Wilhelm Barnes (Barn Owl) Otus (scientific name for Scops Owl) Vanda (Species of Orchid) (Vander) Lockhart (Species of Orchid Lockhartia) Oberon (Species of Orchid Oberonia) Jolson (Owl in luney tunes) Soren (Owl from legends of the guardians: the owls of ga’hoole) Again Starting with T middle with B like Tyler Bennett
Elma Snow (Thelma and snowy owl) for a girl & Bertie Lock (Beryl and Lockhart orchid) for a boy 🫶🏼
Sorry for your loss 💔 I Absolutely love Thelma! What about elm for a boy (my boys middle name is oak, so I like a tree name lol) or Elma/ Elba for a girl? if you didn’t want to use the full name Thelma. Beryl is actually gender neutral too, I’ve worked with a man named Beryl xx