physics

Mary Thomford Sellmer

Mary Thomford Sellmer is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mary Thomford Sellmer rather than just read about it. In short: Mary Hamilton Thomford Sellmer (born September 7, 1902) was the first female game warden in California. Early life Mary Hamilton Thomford was born in Hayward, California, on September 7, 1902, the daughter of John William Thomford (December 15, 1866 - May 21, 1957) and Mary Hamilton.

Key takeaways

Mary Thomford Sellmer belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mary Thomford Sellmer to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mary Thomford Sellmer from memory before moving on to harder problems.

Reference excerpt

Mary Hamilton Thomford Sellmer (born September 7, 1902) was the first female game warden in California.

Early life Mary Hamilton Thomford was born in Hayward, California, on September 7, 1902, the daughter of John William Thomford (December 15, 1866 - May 21, 1957) and Mary Hamilton.

Career On November 22, 1927, Mary Thomford Sellmer was appointed Deputy Game Warden of Marin County, becoming the first woman to be a game warden in California and the only one in the world in the 1920s. She acted under the supervision of her husband, Captain Walter B. Sellmer of the California Fish and Game Commission. She was not an "honorary officer" like other women before her, but a full-fledged game warden. In the first year after her appointment she arrested forty-seven violators of the game laws. She was an expert rifle and pistol shot.

In 1929 she was featured in the July number of American Forests.

She was a member of the Associated Sportsmen's Club of California and the Marin Rod and Gun Club.

Personal life On January 8, 1923, at Hayward, California, Mary Thomford married Captain Walter Bruno Sellmer (May 16, 1891 - August 20, 1982) and they had one son, William Ross Sellmer (1923-1984). Later Walter Sellmer became Sheriff of Marin County.

She lived at 230 Forest Ave., Fairfax, California.

In 1940 she filed for divorce on dual charges of desertion and extreme cruelty and asked custody of their 16-years-old son and $100 monthly alimony and support for the child.

References

Worked examples

Example 1 — a first encounter with Mary Thomford Sellmer

Start with the simplest possible case. Write down what Mary Thomford Sellmer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mary Thomford Sellmer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mary Thomford Sellmer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mary Thomford Sellmer

In research: Mary Thomford Sellmer appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mary Thomford Sellmer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mary Thomford Sellmer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1902 births, American law enforcement officials, People from Fairfax, California, so understanding it makes those chapters shorter.
In everyday life: Look for Mary Thomford Sellmer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mary Thomford Sellmer in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mary Thomford Sellmer means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mary Thomford Sellmer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mary Thomford Sellmer in simple terms?

Mary Hamilton Thomford Sellmer (born September 7, 1902) was the first female game warden in California. Early life Mary Hamilton Thomford was born in Hayward, California, on September 7, 1902, the daughter of John William Thomford (December 15, 1866 - May 21, 1957) and Mary Hamilton.

Why does Mary Thomford Sellmer matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mary Thomford Sellmer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mary Thomford Sellmer.