In a family, there are six members: $A,B,C,D,E,$ and $F$. $A$ and $B$ are a married couple. $D$ is the only son of $C$. $A$ is the father of $E$, who is the granddaughter of $F$. $F$ 's husband has passed away. $C$ is the brother of $A$. How many male members are there in total within this family?

Let's break down the relationships step-by-step to determine genders:
1. "$A$ is the father of $E$ ": This means $A$ is a Male ($+$) and $E$ is a child.
2. "$A$ and $B$ are a married couple": Since $A$ is a male, $B$ must be a Female ($-$).
3. "$E$ is the granddaughter of $F$ ": Since $A$ is her father, $E$ must be a Female ($-$).
4. "$F$ 's husband has died": This implies $F$ is a widowed Female ($-$).
5. "$C$ is the brother of $A$ ": This makes $C$ a Male ($+$).
6. "$D$ is the only son of $C$ ": This explicitly makes $D$ a Male ($+$).

Let's consolidate the structural list of genders:

*Males ($+$):** $A,C,D$ (Total = 3)
*Females ($-$):** $B,E,F$ (Total = 3)

Thus, there are exactly $3$ male members in the family.