The task: Give your family tree only using last names and stuff like Mom, Dad, Step Mom. No first names.
GM- Grandmother
GGM- Great Grandmother
GF- Grandfather (in this case)
GGF- Great Grandfather
F- Father
M- Mother
SM- Step Mother
SF- Step Father
SB- Step Brother
SS- Step Sister
HB- Half Brother
HS- Half Sister
BM- Biological Mother
BF- Biological Father
? = Unknown person
() = Adoption
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Mine:
GM- Andrews + GF- Andrews = F-Andrews
GM- Peterson + GF- Boone = M-Andrews
F-Andrews + M- Andrews = (BM- Gagnon + BF- Jorden) = me
F-Andrews + SM- Mason = N/A
SM- Mason + ? = SS- Weber & SB- Weber
BM- Gagnon + ? + ? = HB- Gagnon & HB-Chevarie & HS- Edmonson
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If you can understand all of that then you would know that i have one step brother and one step sister, two half brothers and a half sister and am adopted. You would also get that my parents are divorced and that my mom lives alone and never remarried but my dad did remarry thus getting me my step brother and sister. If you can do this try it below 
