Rick: this is what I am reading in the baptism record; "que su madrina la Snr[? abbreviation for senorita] Josefa Dominguez, soltera hija del Sr Mariano, y la Sra Venancia Sotelo",
Translation: her godmother miss Josefa Dominguez, single daughter of Mr Mariano, and Mrs Venancia Sotelo [the wife almost always kept her surname after marriage]
It was common practice to note the marital status of the godparents, if they were single, who their parents were, if married were they married to each other or married to others but standing together as godparents, etc., if you read through a few pages of baptisms you will begin to see a pattern emerge. The church kept excellent records, baptisms being a good example.
Why the child's mother was not mentioned is a good question, but, a common occurrence. I've compiled quite a few Native American genealogies for California families and many have missing names or, the native name is not given, only the name the priest bestowed upon the child or adult when they were brought into the church. My 5th great grandmother is a good example of this, a Salinan Indian born at Mission San Antonio, her father was named by his native name in her baptism but she was not and her mother was not mentioned. 5G aquired a surname at marriage,we never have figured out where it connected. Her father aquired one sometime after his baptism as did some of his children, poor wife never did.
I’ve also a g. grandmother born out of wedlock, when she was baptized, she was given her mother’s surname but at some point started using her godparents surname. At the time of her death her husband, my great grandfather, was the only one that knew and gave her actual full name, it made genealogy in my family a real challenge until I found his affidavit.
If you would like a copy of LA Bat# 109 for Gertrudis, please contact me off list with your email address and will e-mail it to you as an attachment. I'm assuming you already have the one for the child Josefa, if not I can send that as firstname.lastname@example.org