The City of Tacomas Giving Tree expects to provide needed holiday gifts for at least 50 children and 50 seniors who use the services of the Human Rights and Human Services Department at the Beacon and Lighthouse senior centers, as well as families of domestic violence victims. Trees are located on the third, fifth, sixth and twelfth floors of the Tacoma Municipal Building, as well as at the Tacoma Dome and Source Control offices. Gifts will be distributed to the children and seniors on Dec. 20.